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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
②find the projection of AB on CD whoseA = (2,-3,0) , B=(1-4,-2) , C =(4,6,8)D = (7, 0 , 10) |
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Answer» The RIGHT SIDE PHOTO is after the left plz mark is as brainliest b..bye #ANSWERWITHQUALITY #BAL |
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| 2. |
Q.5 In fig ABCD is a square. Area of the shaded circular ring is286 cm". The difference between the radii of the two circles is 7 cm.Find the radius of each circle and the ratio of the area of theunshaded part of the square to the area of shaded circular ring. |
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Answer» Step-by-step explanation: LET R and r is the radii of outer and inner circle respectively. a/c to question, R -r = 7 cm --------------(1) πR² -πr² = 286 cm² π(R -r)( R + r ) = 286 cm ² 22/7 × 7 (R + r) = 286 cm² (R + r) = 13 ---------(2) from equation (1) and (2) R =10 cm r = 3 cm Please MARK me as brainliest :) |
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| 3. |
1) Find the acute angle between the following pairs oflines.(i) x+3y +5=0 and 2x + y-1=0 |
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Answer» Step-by-step explanation: |
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| 4. |
Draw a angle of 140 and divide it into four equal parts with compass. |
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Answer» Answer: 35° Step-by-step EXPLANATION: FIRST draw a angle with measure of 140°. Now do 140/4. You will GET 35°. So, divide 140° into 4 equal parts . In each part , you will get measure of 35° |
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| 5. |
The factors of expression a2-b2are –(a) ¼a2&b2½ (b) ¼a2&b2½ ¼a$b½(c) ¼a$b½ ¼a$b½ (d) ¼a&b½ ¼a$b½ |
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Answer» I REALLY don't KNOW if you have an INTERNET CONNECTION with the |
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| 6. |
10th class math best notes |
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Answer» Answer: just solve ncert and nothing ELSE. SOLUTIONS are AVAILABLE ONLINE if REQUIRED |
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| 7. |
Find the value of the following by using logarithm table 3√56.17 ÷ √87.14 |
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Answer» Answer: Answer 885.324334828 3.98 X 8.76 X 0.1718 __________________ 0.03 X 0.526 X 8.43 On your CALCULATOR and using 'logs to base 10'. log 3.98 = 0.599883072 log 8.76 = 0.942504106 log 0.1718 = -0.76497684 ADD' these log values together. 0.777410377 That is the 'log' value of the top (numerators) together. Now do the same for the bottom line log 0.03 = -1.522878745 log 0.526 = -0.279014255 log 8.43 = 0.925827574 Again 'ADD' these log values together. -0.876065426 That is the 'log' value of the bottom (denominators) together. To make the division between the numerators and denominators we 'SUBTRACT' to two log values. 0.777410377 - -0.876065426 = 1.653475803 Antilog . Because we are using 'logs to base 10' then the antilog is 10^(1.653475803 ) 10^(1.653475803 ) = 45.2728933 However, if you are using Castles Four Figure Tables. Then to log 3.98 . First there is only a 'units' digit (3) in the number so the log starts as '0.' Then ignoring the decimal point in 3'98' so that it is read as '398' look down the extreme left hand column for '39' move along this line to the right until you column to column '8'. The answer at this given juncture is '5999'. So the log(10) = 0.5999. To log a value like 0.1718, we note that there is no units (0.) so the first digit in the log is '-1'. Then from the tables as before read for '1718' , The log value is'2350. So the log(10) 0.1718 is -1 + 0.2350 = -0.7650 Then having logged all the values proceed as above (Add/Subtract) as appropriate for Multiplication/Division respectively. Then 'Antilog' 1.653475803 using the tables. In the Antilog. table , go down the extreme left column to 0.65 then along to column '3' , and this juncture the value is '4498' . However the next digit in 1.65347 is '47' say '5' , so move to the sub-columns to the right to column '5' . The value at the juncture will be also '5' . So this subordinate '5' is added on to '4498' making '4503'. The '1' to the left of the decimal point in the 'log value' (1.65347...) indicates that there two DIGITS to the left of the decimal point. HENCE '4503' becomes '45.03'. 45.2728933 Approx. = to 45.03 Allowance has to be made for tabular approximations against calculator approximations!!!! PLEASE MAKE ME BRAINLIST |
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| 8. |
Sole these pls 1,2,3 |
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Answer» hhjjjjkhhjjjnktghhjjjhjjkkl hhjkkl
jkpjkophhjkkobnkll |
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| 10. |
The area of a rectangular prayer hall is 300 sq. m. If the length of the hall (in metres) is one more than twice its its breadth, then find the dimensions of the prayer hall. |
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Answer» Answer: area=300 sq.cm let breadth be = X so LENGTH will be=2x+1;(twice of breadth and ONE more) dimensions=2(l+b) 300= 2(2x+1+X) 300=2(3x+1) 300/2=3x+1 150=3x+1 150-1=3x 149=3x 149/3=x |
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| 11. |
1.) Ifat 6+_ ab-be-ca=o prove that(6+6Catha. (catal2tCatb)2ab =boc |
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Answer» I am not GETTING the question. but you are really a genius . my friend SORRY I will not be ABLE to answer bit i will definitely answer it next TIME. i will research it. |
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| 12. |
If ∆ABC is right angled at B.express cosec Aand sec A |
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Answer» COSEC a = ac/bc sec a = ac/ab |
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| 13. |
If √2x-1-3=0,then the value of x is |
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Answer» Step-by-step EXPLANATION: x=2 |
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| 14. |
regular sheet of paper 22 cm and 12 CM broad and can be cover to found lateral surface of a right circular cylinder in two ways taking π=22/7 the difference between the volume of the two cylinder thus formed |
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Answer» Step-by-step EXPLANATION: you have to do by yourself |
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| 15. |
4 people can dig a trench in 3 hours. How long can it take 9 people? |
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Answer» Step-by-step explanation: 1 people can dig a trench=4/3h 9 people can dig a trench=4/3× 9 =4×3 =12 h I HOPE you understand:) |
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| 17. |
Compare the following number -5,-3 |
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Answer» -3>-5 |
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| 18. |
darwin and minute hand of a clock 4.2 and 7 centimetre hospital sbbj find some of the distance covered by in one day |
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Answer» ❤❤ U can easily UNDERSTAND by this SOLUTION. --------------------------------------------------------------------- |
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| 19. |
Solve this questions? |
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Answer» Step-by-step EXPLANATION: answer is R- 0.155 |
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| 20. |
Diagonal of rectangle are equal and perpendicular in this statement is true give reason your answer |
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Answer» FALSE, Because DIAGONALS of RECTANGLE are EQUAL but are not PERPENDICULAR to each other. |
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| 21. |
Draw a triangle ABC in which BC = 6 cm, CA = 5 cm and AB = 4 cm. Construct atriangle similar to it and of scale factor 3/2 |
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Answer» MARK as BRAINLIEST |
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| 22. |
5. If 16% of a number is 72, find the number. |
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Answer» |
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| 23. |
inside a square Park of 105m, a flower bed of 5m wide is built all around. what is the area of the remaining part of the park? find the cost of leveling the park at the rate of Rs.12 per sq.meter |
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| 24. |
If the how many times will the wheel of a car in a journey of 88 kilometre given that the diameter of the wheel is 56 centimetre |
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Answer» PERIMETER of wheel=2×pie×r =2×22/7×28 =176cm =88000cm/176 =500 |
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| 25. |
3. Find the quotient for the following.(a) 460 - 10(b) 990 = 10 |
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Answer» (a) 46 (B) 99 please FOLLOW me. hopefully it HELPS |
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| 28. |
LO)d.(-2)+(-35) +90+995) |
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Answer» -2-35+90+995=1085-37=948 |
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| 29. |
Divide 3x^4-4x^3+3x-1 by x+1 and hence verify by using remainder theorem |
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Answer» Step-by-step EXPLANATION: |
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| 30. |
The sum of three consecutive integers is 54 find the three integers |
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Answer» Step-by-step explanation: Let the first number be x 2nd Number WOULD be (x + 1) 3rd number would be (x + 2) As per question, x + x + 1 + x + 2 = 54 3x + 3 = 54 3(x+1) = 54 x + 1 = 54/3 x+1 = 18 x = 18 - 1 x = 7 The Three Numbers are 7 , 8 , 9 |
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| 31. |
The straight line 3x-4y-3=0, cuts the circle x^2+y^2-6x-8y+30=0 at the points p and qa. find the coordinate of p and qb. calculate length of the chord pq and the shortest distance from the centre of the circle to the chord pq.pls i need urgent step by step solution in these. i will really appreciate |
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Answer» dude U can search it on Google or yøu TUBE . . . . . ✌️✌️✌️✌️✌️ |
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| 32. |
The sum of numerator and denominator of a fraction is 12 if the denominator is increased by 3 then the fraction becomes 1 by 2 find the fraction |
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Answer» Answer: 5/7 Sum is 12 so LET the numerator be x and denominator is 12 - x . THUS fraction formed = x/12 - x Now according to the question, x/ 12 - x + 3 = 1/2 x / 15 - x = 1/2 by CROSS multiplication, 15 - x = 2x 15 = 3x 5 = x So the numerator of fraction is 5 and denominator is 12 - x = 12 - 5 = 7 So the fraction formed is 5/7.
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| 33. |
Angle in a semi-circle is........Options is :a : 90b : 180c : less than 90d : more than 90 |
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Answer» a) |
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| 34. |
Show that if the diagnals of a quadrilateral intersect each other at right angld , then the sum of squares of opposite sides are equal |
Answer» Sum of SQUARES of opposite sides are equalStep-by-step explanation: Given that ABCD is a square. To prove : AC=BD and AC and BD bisect each other at right angles. Proof: (i) In a ΔABC and ΔBAD, AB=AB ( COMMON line) BC=AD ( opppsite sides of a square) ∠ABC=∠BAD ( = 90° ) ΔABC≅ΔBAD( By SAS property) AC=BD ( by CPCT). (ii) In a ΔOAD and ΔOCB, AD=CB ( opposite sides of a square) ∠OAD=∠OCB ( transversal AC ) ∠ODA=∠OBC ( transversal BD ) ΔOAD≅ΔOCB (ASA property) OA=OC ---------(i) Similarly OB=OD ----------(ii) From (i) and (ii) AC and BD bisect each other. Now in a ΔOBA and ΔODA, OB=OD ( from (ii) ) BA=DA OA=OA ( common line ) ΔAOB=ΔAOD----(iii) ( by CPCT ∠AOB+∠AOD=180° (linear pair) 2∠AOB=180° ∠AOB=∠AOD=90° ∴AC and BD bisect each other at right angles. please mark me as BRAINLEST |
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| 35. |
find the value of k for which the system of equations X + 2y = 3 and 5 x + K Y + 7 = 0 has no solution |
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Answer» Step-by-step EXPLANATION: x+2y= 3 5x+KY= -7 eliminate 1eq from 2eq |
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| 36. |
2. Divide the following using multiplication facts.(a) 28 by 7(b) 64 by 8 |
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Answer» a)4 b)8 Step-by-step explanation: 28/7=4 64/8=8 Hence SOLVED |
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| 37. |
What is the factored form of x2 – x – 2?(x – 2)(x + 1)(x + 2)(x + 1)(x – 2)(x – 1)(x + 2)(x – 1) |
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Answer» HEY! it's (x+1)(x+2) here US EXPLANATION for your QUESTION |
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| 38. |
.) A deposit of 350,000 results in an amount of1,02,500 after a period of time. What is theinterest? If the rate of interest is 21% per year,what is the period of deposit? |
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Answer» INTREST is 350000-102500 =247500 247500*100/350000 therefore intrest is of 70.71 Step-by-step EXPLANATION: |
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| 39. |
Answer and get the brainliest answer reward |
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Answer» Easy 2^a=3^b=6^(-c)=k 2^a=k k^(1/a)=2 similarly k^(1/b)=3 & k^(-1/c)=6 and since 2×3=6 [k^(1/a)]×[k^(1/b)]=k^(-1/c) k^[(1/a)+(1/b)]=k^(-1/c) since BASES are same thats why powers will be equal therefore, (1/a)+(1/b)= -1/c (1/a)+(1/b)+(1/c)=0 Mark me as the BRAINLIEST |
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| 40. |
The diameter of the three circles in this figure are 21 सेंटीमीटर 40 सेंटीमीटर एंड 7 सेंटीमीटर व्हाट इज द एरिया ऑफ द शेडेड रीजन |
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| 41. |
Show the photo1.of the cost of 4 dozen Banana is rupees 60 how many bananas can be purchased for rupees 12.50 |
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Answer» Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Tap on a clip to paste it in the TEXT box.Welcome to Gboard clipboard, any text that you copy will be saved here.Use the EDIT ICON to pin, add or delete clips.Use the edit icon to pin, add or delete clips.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Welcome to Gboard clipboard, any text that you copy will be saved here.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Use the edit icon to pin, add or delete clips.Use the edit icon to pin, add or delete clips.Welcome to Gboard clipboard, any text that you copy will be saved here.Tap on a clip to paste it in the text box. |
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| 42. |
Find the value of sin 28° bycos 62°with verification please |
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Answer» SIN 28/cos 62 cos(90-28)/cos62 1 |
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| 44. |
C. By what number should (2)^-1 be multiplied so that the product is (-5/4)^-1 |
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Answer» Let the NUMBER multiplied be X. A.T.Q., 2^(-1) × X = (-5/4)^-1 x/2 = -4/5 x = -8/5 ANSWER : -8/5 |
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| 45. |
Pls anyone tell what all one needs to do from class 12 to go for a Phd in mathematics (every step Please!) |
Answer»
please mark as brainlest answer and follow me..... |
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| 46. |
36 children are seated at Vaibhav's birthday party in rowsconsisting of an equal number of chairs. In how manyways can the children be seated so that there are atleast 2 children in a row? |
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Answer» Answer: |
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| 47. |
All simplest form of (2×4) square 2 |
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Answer» Step-by-step explanation: 2 power 2 is 4 |
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| 48. |
1. Verify that the following numbers are in proporto(1) 12, 18, 40, 60(ii) 3, 5, 6, 10(iii) 5,11 |
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Answer» Step-by-step EXPLANATION: |
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| 50. |
In the given figure, OEB = 75°, OBE = 55° and OCD = 100%. Then ODC=? |
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Answer» GIVEN :- In the given figure, ∠OAB is equal to 75°, ∠OBA is equal to 55° and ∠OCD is equal to 100°. Then ∠ODC is equal to ? Solution :- In ∆OAB, we have, → ∠OAB + ∠OBA + ∠AOB = 180° (By Angle sum PROPERTY.) → 75° + 55°+ ∠AOB = 180° → 130° + ∠AOB = 180° → ∠AOB = 180° - 130° → ∠AOB = 50° now, as we can see that, → ∠COD = ∠AOB = 50° (vertically OPPOSITE Angles.) In ∆OCD, we have, → ∠COD + ∠OCD + ∠ODC = 180° (By Angle sum Property.) → 50° + 100° + ∠ODC = 180° → 150° + ∠ODC = 180° → ∠ODC = 180° - 150° → ∠ODC = 30° (Ans.) LEARN more :- In ABC, AD is angle bisector, angle BAC = 111 and AB+BD=AC find the value of angle ACB=? |
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