332354 + Interview Questions in Secondary School in Math

1.	0.13×p^2=13 than p =?
Answer» HEYA!! --------- $0.13 \times <klux>P</klux> {}^{2} = 13 \\ \\ \frac{13}{100} \times p {}^{2} = 13 \\ \\ p {}^{2} = \frac{13 \times 100}{13} \\ \\ p {}^{2} = 100 \\ \\ p = \frac{ + }{ - } <klux>10</klux>$ HENCE P can be 10 or -10 ---------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------

Discussion

2.	A and b together can do a piece of work in 15 days. if a 's one day work is one whole one upon two times the one day's work of b find in how many days can each do the work
Answer» LET 1 day WORK of B = x A 1 day work = 1 1/2 of B = 3/2 of x = 1.5 x Their 1 day work together is, 1/1.5x + 1/x = 1/15 (1 + 1.5) / 1.5x = 1/15 2.5/1.5x = 1/15 5/3x = 1/15 3x = 75 x = 25 So B can do it in 25 days and A can do it in 37 1/2 days

2.

A and b together can do a piece of work in 15 days. if a 's one day work is one whole one upon two times the one day's work of b find in how many days can each do the work

Answer»

LET 1 day WORK of B = x

A 1 day work = 1 1/2 of B = 3/2 of x = 1.5 x

Their 1 day work together is,

1/1.5x + 1/x = 1/15

(1 + 1.5) / 1.5x = 1/15

2.5/1.5x = 1/15

5/3x = 1/15

3x = 75

x = 25

So B can do it in 25 days and A can do it in 37 1/2 days

Discussion

3.	Find the area of rhombus whose digonal are 16cm and 12cm?
Answer» HOPE this HELPS you...

Discussion

4.	at an annual function of a school,each student gives gift to every other student. If the number of gifts is 1980,find the number of students
Answer» Let the number of students be X if each STUDENT gives GIFTS to every other student , then each student has to CARRY (X-1) gifts . so , TOTAL number of gifts is given by, X * (X-1) = 1980 X^2 - X = 1980 X^2 - X - 1980 = 0 X^2 - 45X + 44X -1980 = 0 X(X - 45) + 44 (X - 45) = 0 X = 45 or X = -44 as the number of students is always POSITIVE , X= 45 so there are 45 students.

Discussion

5.	Write in decimal form 4 metres and 6 cm
Answer» 6 cm = 0.06 m Thus, 4m6cm = 4.06m Hope it HELPED you....If yes then don't hesitate to mark my answer as BRAINLIEST.

Discussion

6.	Can the positive integer p be expressed as the product of two integers
Answer» YES it can be EXPRESSED by MULTIPLYING with 1 plz mark it as BRAINLIST

Discussion

7.	A matrix with two rows and eleven columns is to be filled with numbers 1 to 22
Answer» HOPE U UNDERSTAND....

Discussion

8.	A man sold two watches at rs.450 each.he sold one at a loss of 15% and the other at a gain of 15%.his loss or gain is
Answer» In such cases there will be always LOSS. The SP is irrelevant. Loss% = {(COMMON GAIN or loss %) / 10}^2 = (15/10)^2 = (1.5)^2 = 2.25 %

8.

A man sold two watches at rs.450 each.he sold one at a loss of 15% and the other at a gain of 15%.his loss or gain is

Answer»

In such cases there will be always LOSS. The SP is irrelevant.

Loss% = {(COMMON GAIN or loss %) / 10}^2 = (15/10)^2 = (1.5)^2 = 2.25 %

Discussion

9.	A man sold 2article for rs 500 each. on one he gains 20% and on the other he loses at 10% find the overall gain or loss
Answer» 20% gain = 20% of RS 500 = 0.2 x 500 = rs 100 Sales Price = 500 + 100 = rs 600 10% lost = 10% of rs 500 = 0.1 x 500 = rs 50 Sales Price = 500 - 50 = rs 450 Total Sales = 600 + 450 = rs 1050 Total Cost = 500 x 2 = rs 1000 Overall gain = 1050 - 1000 = rs 50 Answer: Gain = rs50

9.

A man sold 2article for rs 500 each. on one he gains 20% and on the other he loses at 10% find the overall gain or loss

Answer»

20% gain = 20% of RS 500 = 0.2 x 500 = rs 100

Sales Price = 500 + 100 = rs 600

10% lost = 10% of rs 500 = 0.1 x 500 = rs 50

Sales Price = 500 - 50 = rs 450

Total Sales = 600 + 450 = rs 1050

Total Cost = 500 x 2 = rs 1000

Overall gain = 1050 - 1000 = rs 50

Answer: Gain = rs50

Discussion

10.	A mans monthly income is 525rs.he spends 175rs.from his income how much percentage he spends
Answer» $\% = \frac{money \: spend \: }{total \: salary} \times 100 \\ \\ \\ = > \% = \frac{175}{525} \times 100 \\ \\ \\ = > \% = 33.34\%$

Discussion

11.	A man bought 20 article at rs 25 and sold 30 articles at rs 45 what is the loss or gain percentage
Answer» 20% GAIN in WHOLE TRANSACTION

Discussion

12.	Find the rational number which when multiplied by 4 gives reciprocal of 4
Answer» LET the RATIONAL NUMBER be n. $4n = \frac{1}{4} \\ \\ n = \frac{1}{4} / 4 = \frac{1}{4} \times \frac{1}{4} = \frac{1}{16}$ n = 1/16 Hope this may be helpful. Please MARK my answer as the brainliest if this may be helpful. Thank you. Have a NICE day.

12.

Find the rational number which when multiplied by 4 gives reciprocal of 4

Answer»

LET the RATIONAL NUMBER be n.

$4n = \frac{1}{4} \\ \\ n = \frac{1}{4} / 4 = \frac{1}{4} \times \frac{1}{4} = \frac{1}{16}$

n = 1/16

Hope this may be helpful.

Please MARK my answer as the brainliest if this may be helpful.

Thank you. Have a NICE day.

Discussion

13.	Log 385 5+ log 385 11
Answer» 7.1720 is your ANSWER

Discussion

14.	The marks out of 100 obtained by a group of Students in a Science Test are 85 ,76,90,85,39,48,56,95,81,and 71 find the Range of the marks obtained
Answer» HEYA!! --------- ⭐RANGE = MAXIMUM OBSERVATION - MINIMUM OBSERVATION = 95 -39 =56 Hence the range is 56 ---------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------

Discussion

15.	A horse is placed for grazing inside a rectangular field 40m by 36 m
Answer» Hey MATE... If you need the area then: AR. of rectangular FIELD =L×B =(40×36)m² =1440m² And if you need perimeter then: Perimeter of rectangular field =2×(l+b) =2(40+36)m =2×76m =152 m I hope it will HELP you #yahyaahmad#

Discussion

16.	(a+b)^3÷a+2ab+b simplify
Answer» (a+B)^3÷a+2ab+b = (a³ + 3a²b + 3ab² + b³)÷ a + 2ab + b = a² + 3ab + 3b + b²/a + 2ab + b = a² + 5AB + 4B + b²/a Answer: a² + 5ab + 4b + b²/a

16.

(a+b)^3÷a+2ab+b simplify

Answer»

(a+B)^3÷a+2ab+b

= (a³ + 3a²b + 3ab² + b³)÷ a + 2ab + b

= a² + 3ab + 3b + b²/a + 2ab + b

= a² + 5AB + 4B + b²/a

Answer: a² + 5ab + 4b + b²/a

Discussion

17.	The marks out of 100 obtained by a group of Student in a Science Test are 85,76,90,85,39,48,56,95,81 and 75 .find the Highest and the lowest marks obtained by the Student
Answer» HIGHEST -95 and LOWEST -48

Discussion

18.	Write two Pythagorean triplets each having one of the numbers as 5.
Answer» 3,4,5 13,12,5 thats it and I HOPE it HELPS

Discussion

19.	the price of petrol were hiked by 3 percent and then they were rolled back by 2percent. find the net increase and decrease percent of the petrol price
Answer» So , the NET INCREASE in PETROL PRICE is 0.94% of its ORIGINAL price

Discussion

20.	The perimeter of square is 800cm find its digonal
Answer» Perimeter = 800 4× SIDE = 4 × 200 side = 200 cm Hence, we know, DIAGONAL = a√2 Diagonals = 200√2 cm $.$

Discussion

21.	Is quadrilateral rstv a rectangle? (1) the measure of ?rst is 90o (2) the measure of ?tvr is 90o
Answer» YES it is EVENTUALLY a RECTANGLE

Discussion

22.	The following table shows the favorite sports of 300 students of a school.Sports Cricket Football Hockey Badminton Swimming TennisNo. of Students 80 40 20 30 45 75Represent the above data using bar graph.
Answer» Here is your BAR GRAPH ,i HOPE its HELP you

Discussion

23.	After covering 3/4 of my journey i find that 15 km is still left how many distance of the total journey
Answer» 1 - 3/4 = 1/4 1/4 → 15 km 4/4 → 15 X 4 = 60 km Answer: The total distance is 60KM

23.

After covering 3/4 of my journey i find that 15 km is still left how many distance of the total journey

Answer»

1 - 3/4 = 1/4

1/4 → 15 km

4/4 → 15 X 4 = 60 km

Answer: The total distance is 60KM

Discussion

24.	After how many square no.s another sq no. comes formula
Answer» 1+3+5+7+9+11+13+15 +17........... ACCORDING to ODD NUMBER

Discussion

25.	To find the mean Number of points per games 8,11,0,13 Would you divide by total points by 3 or 4 ? Why?
Answer» We will DIVIDE it by 4 as the NUMBER of ENTRIES is 4

Discussion

26.	If 5th term of GP is 3645 and 7th term is 32805, find the first term.
Answer» the value FIRST term 'a' is 45 ,( it's 45 if we consider 'R' as both +3 & -3)

Discussion

27.	Find the median and mode of the data 13,15,16,12,14,19,14,12,14
Answer» Let the numbers be WRITTEN in ascending order. 12, 12, 13, 14, 14, 14, 15, 16, 19 Here are 9 numbers. So the median is (9 + 1) ÷ 2 = 10 ÷ 2 = 5th NUMBER. 12, 12, 13, 14, 14, 14, 15, 16, 19 14 is the median. Here 14 is REPEATED 3 times, i. e., repeated more than the others. 12, 12, 13, 14, 14, 14, 15, 16, 19 So 14 is the mode. Hope this may be helpful. Please mark my answer as the brainliest if this may be helpful. Thank you. Have a nice day.

27.

Find the median and mode of the data 13,15,16,12,14,19,14,12,14

Answer»

Let the numbers be WRITTEN in ascending order.

12, 12, 13, 14, 14, 14, 15, 16, 19

Here are 9 numbers. So the median is (9 + 1) ÷ 2 = 10 ÷ 2 = 5th NUMBER.

12, 12, 13, 14, 14, 14, 15, 16, 19

14 is the median.

Here 14 is REPEATED 3 times, i. e., repeated more than the others.

12, 12, 13, 14, 14, 14, 15, 16, 19

So 14 is the mode.

Hope this may be helpful.

Please mark my answer as the brainliest if this may be helpful.

Thank you. Have a nice day.

Discussion

28.	Fill in the blanksA) 242÷ =242B) -85÷ = -1C)12÷ =3D)30÷ = -2
Answer» A) 1 b) 85 c) 4 d) -15 these R answers resp. plz mark it brainlist

Discussion

29.	A curve which does not cross itself at any point is called
Answer» The CURVE which doesn't INTERSECT itself is CALL SIMPLE CLOSE curve

Discussion

30.	A clock strikes 12 at 22 sec ,the time it shall take to strike 6 is
Answer» 52 SECONDS. Time TAKEN to STRIKE 12 = 22 sec it takes 30 seconds to strike 6 so 30 + 22 = 52

30.

A clock strikes 12 at 22 sec ,the time it shall take to strike 6 is

Answer»

52 SECONDS.

Time TAKEN to STRIKE 12 = 22 sec

it takes 30 seconds to strike 6

so 30 + 22 = 52

Discussion

31.	A Played in all the four games 0,8,6,4 How would you find the mean
Answer» ADD them up and then DIVIDE by 4 = 0+8+6+4 / 4 = 18/4 = 4.5

Discussion

32.	What is the difference between traingle and rectangle?
Answer» TRIANGLE has THREE SIDES Rectangle has FOUR sides

Discussion

33.	Give the proper answer for the question 1 under 3 and 4th Roman letter only please
Answer» Ans. 1. [-1,4) 3. (-1 3) 4. (0 15/3)

Discussion

34.	Differentiate tan logx w.r.t.x.
Answer» HOPE it will HELP you .

Discussion

35.	The least number which is a perfect square and has 60 as a factor is
Answer» If your number must be an integer, you would need to solve for x: 60x=p2,{x,p}∈Z60x=p2,{x,p}∈Z Note that 60=22⋅3⋅5.60=22⋅3⋅5.The prime factorization of a perfect square can be recognized by all EXPONENTS having even parity. In this case, 2 already does but 3 and 5 don’t; multiplying by 15 (3×5)15 (3×5) PRODUCES 900=302=22⋅32⋅52.900=302=22⋅32⋅52. 133 Views · View Upvoters Upvote · 1 Comment... Norman Chung Answered Apr 30 If you consider 0^2 as a perfect square, then the lowest number that has to he MULTIPLIED to 60 to make a perfect square is zero. If you want the perfect square of a positive integer and can use fractions, you could MULTIPLY 60 by 1/60 to GET 1^2 or 1. Lastly, if you want a perfect square that is greater than 60 AND where you multiply by an integer to get to that perfect square, we can start by prime factoring 60: 60 = 2^2 x 3 x 5 If you want a perfect square, you want every factor of that number to have an even power. Thus, you multiply 60 by 15 (3 x 5) to get all the powers even. This equals 900 or 30^2.

Discussion

36.	A certain sum of money becomes 13640 in 2yrs and 15500 in 5yrs at si find the sum
Answer» Here is your SOLUTION

Discussion

37.	A can finish an it project in 15 days, b can finish the same project in 12 days. in how many days, both of them can finish 60% of the project? it may be assumed that working together does not impact their productivity.
Answer» A can finish the PROJECT in 15 days. B can finish the project in 12 days. A and B can finish the project in $\cfrac{15 \times 12}{15 +12} = \cfrac{20}{3} = 6\cfrac{2}{3}\text { days}$ 60% of the project can be COMPLETED in: $60\% \times 6\cfrac{2}{3} = \cfrac{60}{100} \times \cfrac{20}{3} = 4 \text { days}$ ANSWER: 4 days

37.

A can finish an it project in 15 days, b can finish the same project in 12 days. in how many days, both of them can finish 60% of the project? it may be assumed that working together does not impact their productivity.

Answer»

A can finish the PROJECT in 15 days.

B can finish the project in 12 days.

A and B can finish the project in

$\cfrac{15 \times 12}{15 +12} = \cfrac{20}{3} = 6\cfrac{2}{3}\text { days}$

60% of the project can be COMPLETED in:

$60\% \times 6\cfrac{2}{3} = \cfrac{60}{100} \times \cfrac{20}{3} = 4 \text { days}$

ANSWER: 4 days

Discussion

38.	Raziya buys some shirts at 100rupees per shirt and some t shirt at 180 per t shirt .for rvery
Answer» What the hell is this QIESTION i didnt under stand what your asking PLEASE ask the quation clearly i will HELP u in SOLVING the question !

Discussion

39.	Solve this ch name is real number (10th class)question- explain why 7 ×11 ×13 + 13 and 7 × 6 ×5 × 4 × 3×2×1+5 are composite numbers.
Answer» HEYA!! -------- ✔Composite Number : A number that has more than TWO factors is called a composite number . 4 is the smallest composite number . ---------------------------------------------------------------------------------------------------- ⭐ 7×11×13+13 TAKING 13 common , 13 ( 7 × 11 + 1 ) 13 ( 19 ) Hence the number has two factors leading 1 and the number itself . Hence it is a composite number. ---------------------------------------------------------------------------------------------------- ⭐ 7×6×5×4×3×2×1+5 Taking 5 common 5 ( 7×6×4×3×2+1 ) 5 ( 42× 24 + 1 ) 5 ( 1008+1) 5 (1009) Hence it has two factors LEAVING 1 and the number itself . Hence it is a composite number . ---------------------------------------------------------------------------------------------------- =========================☺☺================================

Discussion

40.	the numerator of a fraction is 2 less than the denominator if 1 is added to the both numbers and denominator the sum of the new and original fraction is
Answer» Things SG all izy SUZI said ekati TWIN CAP

Discussion

41.	the numerator of a fraction is 2 less than the denominator if 1 is added to the both number later and denominator the sum of new and original fraction in and 19/15 .
Answer» Band. changle REH GB fetched BUDDHI FCE gjg

Discussion

42.	Mathew bought a bike for 40000 and spend 8000 on its accessories if he sells the scooter fr 30000 his loss percent is??
Answer» 40000+8000=48000 total SPENDING is 48000 48000-30000=18000 18000/48000=0.375 =loss of 37.5% i THINK THATS the ANSWER

42.

Mathew bought a bike for 40000 and spend 8000 on its accessories if he sells the scooter fr 30000 his loss percent is??

Answer»

40000+8000=48000

total SPENDING is 48000

48000-30000=18000

18000/48000=0.375

=loss of 37.5%

i THINK THATS the ANSWER

Discussion

43.	Who is the father of renaissance? A .Petrarch B Donatello C Michael Angelo Leonardo da Vinci.
Answer» Hey mate!! HERE IS THE ANSWER ➡The FATHER of RENAISSANCE is ✔A)Petrarch. HOPE IT HELPS YOU

Discussion

44.	Find the mean median and mode of the data 13,15,16,12,14,19,14,12,14
Answer» Arrange the number in ascending order: 12, 12, 13, 14, 14, 14, 15, 16, 19 Total = 12 + 12 + 13 + 14 + 14 + 14 + 15 + 16+ 19 = 129 MEAN = 129 ÷ 9 = 14.33 (NEAREST hundredth) Mode = most frequent number = 14 Medium = the middle number = 14 Answer: Mean = 14.33, Mode = 14, Medium = 14

44.

Find the mean median and mode of the data 13,15,16,12,14,19,14,12,14

Answer»

Arrange the number in ascending order:

12, 12, 13, 14, 14, 14, 15, 16, 19

Total = 12 + 12 + 13 + 14 + 14 + 14 + 15 + 16+ 19 = 129

MEAN = 129 ÷ 9 = 14.33 (NEAREST hundredth)

Mode = most frequent number = 14

Medium = the middle number = 14

Answer: Mean = 14.33, Mode = 14, Medium = 14

Discussion

45.	Show that the square of positive integer is either of the form 6 Q + 1 or 6q + 3
Answer» LET the REMAINDERS be 0,1,2,3,4,5 r=0 =6 r=1 (6q+1)2 36q2+1-12q 6q(6-2)+1 6q+1 r=2 (6q+2)2 36q2+4-24q 6q(6-4) +4 6q+4 r=3 (6q+3)2 36q2+9-36q 6q(6-6)+9 6q+9 r=4 (6q+4)2 36q2+16+48q 6q(6-8)+16 6q+16 r=5 (6q+5)2 36q2+25-60q 6q(6-10)+25 6q+25

Discussion

46.	A bag contains a no of red green and blue marble you are blindfolded and ask to pick the minimum no of marbles so that u definitely have two marble of same color
Answer» 2 BLACK MARBLE is you ANS

Discussion

47.	If sec 5a is equal to cosec 4A minus 18 find A
Answer» HI ! $\sin(5a) = cosec(4a) \\ \\$ We KNOW that, $\sin(90 - \theta) = cosec \: \: \theta$ So, $cosec \: (90 - 5a) = cosec \: 4a \\ \\ 90 - 5a = 4a \\ \\ 90 = 4a + 5a \\ \\ 9a = 90 \\ \\ a = \frac{90}{9} \\ \\ a = 10$

Discussion

48.	If tan. . . . . . . . . . . . . . . . . . . . . . . . . .
Answer» In this question put TAN0= BASE /perpendicular after that USE PGT u ll get 3RD side after that use values in eq. u ll get answer

Discussion

49.	This question answer plss
Answer» HOPE it HELPS hope its CORRECT ANSWER

Discussion

50.	Find the value of x in the equation of 10-4(x-5)=x+10
Answer» HEY MATE!!! HERE IS THE ANSWER $10 - 4(x-5)=x+10 \\ 10 - 4x + 20 = x + 10 \\ 30 - 4x = x + 10 \\ 30 - 10 = x + 4x \\ 20 = 5x \\ x = \frac{20}{5} \\ x = 4$

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

0.13×p^2=13 than p =?

A and b together can do a piece of work in 15 days. if a 's one day work is one whole one upon two times the one day's work of b find in how many days can each do the work

Find the area of rhombus whose digonal are 16cm and 12cm?

at an annual function of a school,each student gives gift to every other student. If the number of gifts is 1980,find the number of students

Write in decimal form 4 metres and 6 cm

Can the positive integer p be expressed as the product of two integers

A matrix with two rows and eleven columns is to be filled with numbers 1 to 22

A man sold two watches at rs.450 each.he sold one at a loss of 15% and the other at a gain of 15%.his loss or gain is

A man sold 2article for rs 500 each. on one he gains 20% and on the other he loses at 10% find the overall gain or loss

A mans monthly income is 525rs.he spends 175rs.from his income how much percentage he spends

A man bought 20 article at rs 25 and sold 30 articles at rs 45 what is the loss or gain percentage

Find the rational number which when multiplied by 4 gives reciprocal of 4

Log 385 5+ log 385 11

The marks out of 100 obtained by a group of Students in a Science Test are 85 ,76,90,85,39,48,56,95,81,and 71 find the Range of the marks obtained

A horse is placed for grazing inside a rectangular field 40m by 36 m

(a+b)^3÷a+2ab+b simplify

The marks out of 100 obtained by a group of Student in a Science Test are 85,76,90,85,39,48,56,95,81 and 75 .find the Highest and the lowest marks obtained by the Student

Write two Pythagorean triplets each having one of the numbers as 5.

the price of petrol were hiked by 3 percent and then they were rolled back by 2percent. find the net increase and decrease percent of the petrol price

The perimeter of square is 800cm find its digonal

Is quadrilateral rstv a rectangle? (1) the measure of ?rst is 90o (2) the measure of ?tvr is 90o

The following table shows the favorite sports of 300 students of a school.Sports Cricket Football Hockey Badminton Swimming TennisNo. of Students 80 40 20 30 45 75Represent the above data using bar graph.

After covering 3/4 of my journey i find that 15 km is still left how many distance of the total journey

After how many square no.s another sq no. comes formula

To find the mean Number of points per games 8,11,0,13 Would you divide by total points by 3 or 4 ? Why?

If 5th term of GP is 3645 and 7th term is 32805, find the first term.

Find the median and mode of the data 13,15,16,12,14,19,14,12,14

Fill in the blanksA) 242÷ =242B) -85÷ = -1C)12÷ =3D)30÷ = -2

A curve which does not cross itself at any point is called

A clock strikes 12 at 22 sec ,the time it shall take to strike 6 is

A Played in all the four games 0,8,6,4 How would you find the mean

What is the difference between traingle and rectangle?

Give the proper answer for the question 1 under 3 and 4th Roman letter only please

Differentiate tan logx w.r.t.x.

The least number which is a perfect square and has 60 as a factor is

A certain sum of money becomes 13640 in 2yrs and 15500 in 5yrs at si find the sum

A can finish an it project in 15 days, b can finish the same project in 12 days. in how many days, both of them can finish 60% of the project? it may be assumed that working together does not impact their productivity.

Raziya buys some shirts at 100rupees per shirt and some t shirt at 180 per t shirt .for rvery

Solve this ch name is real number (10th class)question- explain why 7 ×11 ×13 + 13 and 7 × 6 ×5 × 4 × 3×2×1+5 are composite numbers.

the numerator of a fraction is 2 less than the denominator if 1 is added to the both numbers and denominator the sum of the new and original fraction is

the numerator of a fraction is 2 less than the denominator if 1 is added to the both number later and denominator the sum of new and original fraction in and 19/15 .

Mathew bought a bike for 40000 and spend 8000 on its accessories if he sells the scooter fr 30000 his loss percent is??

Who is the father of renaissance? A .Petrarch B Donatello C Michael Angelo Leonardo da Vinci.

Find the mean median and mode of the data 13,15,16,12,14,19,14,12,14

Show that the square of positive integer is either of the form 6 Q + 1 or 6q + 3

A bag contains a no of red green and blue marble you are blindfolded and ask to pick the minimum no of marbles so that u definitely have two marble of same color

If sec 5a is equal to cosec 4A minus 18 find A

If tan. . . . . . . . . . . . . . . . . . . . . . . . . .

This question answer plss

Find the value of x in the equation of 10-4(x-5)=x+10