Explore topic-wise InterviewSolutions in Current Affairs.

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.

EXERCISE 8.1Find the amount and the compound interest on Rs 2500 for 2 years at 10% per annum, compounannually.

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2.

li. Find the amount of1,25,000 after 3 years, when the interest is compounannually at the rate of 6% per annum.

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3.

nt of 2,400 after 3 years when the interest is compounded annuallof 20% per annum.2.407. Find the amountat the rate

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4.

6. On Monday, the price of one shareof Webb Company stock was24.85. By Friday, the price was25.004. By how much did the pricechange from Monday to Friday?

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Price of share on Monday = 24.85

Price of share on Friday = 25.004

Change in price of share = 25.004 - 24.850= .154 paise

5.

2. The probability of guessing the corict ts ti certaii test is t2 . Ifthe probabilityof not guessing the correct answer te this questioa is . then find the value of p.3

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6.

, प्रत्येक धनात्मक विषमअं nt+l(iv) शान |

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Ans :- Option (4) 2n + 1

Put n = 1 = 2×1 + 1 = 3

Put n = 2 = 2×2 + 1 = 5

7.

ही. ७970 (Lo9001oWlom AP6६. 15. (5151065 _1८ 5-20 जा.Hhree donrs oudhls NT ) ~

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If nth term of an A.P = 2n+1

then, first term of A.P = 2(1)+1= 2+1= 3then, second term = 2 (2) + 1=4+1=5third term = 2 (3) +1=6+1=7sum of terms = 3+5+7sum of terms = 15

8.

Aakash lent8,000 to his friend for 3 years at the rate of 5% per annum compounntl. jnerest. What amount does Aakash get after 3 years?

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compound interestso A=P(1+R/100)^3 =8000(1+5/100)^3 =8000*(1.05)^3=9261

9.

26retl= 7 then find the value of.ntl22

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10.

Selye the system of equations 2x+y 5 and 3x + 2y 8 by cross-multiplication method

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11.

Il a and bLandare rational ne.NTL 7THE A-6 NZZ

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12.

DAVINDRA THREE-IN-ONESolve the following pair of lincar equation by using crossmultiplication method:2x + y = 5 and 3x + 2y = 8oto

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x=3 and y=-1 equally

X=2 and y=1 right answere

it is the xbarabr 2 and y barar 1

x= -3 y=1 is correct solution.

x=3 and y= -1 equally right answers Please like

X=2,y=1 by cross multiplication

x=2 y=1 is the correct answer

x=2,y=1 this is a right answer

2x + y =5,then, y = 5 - 2x ......- 3

and eq. 2 3x + 2y = 8then, put eq.3 in eq.23x + 5 - 2x = 8x + 5 = 8x = 3 put in eq. 3then y = -1

Y=1 is the right answer.

x=2 y=1this is right answer

2x+y=5-3x+2y=8x=2y=1-. -

2x+y=5 (1)×3 3x+2y=8 (2)×2

6x+3y=15 6x+4y=16- - -

3y-4y=15-16 -y =-1 y =1

from equation (1)2x+y =52x+1=5 2x=5-1 x =4/2 x= 2. answer3x+2y=8 (2)

the correct answer is x=2 y=1

x=2, y=1 is the correct answer

2x+y=5y=5-2xnow put y value in second iquation3x+2y=83x+2(5-2x)3x+10-4x=8-x+10=8-x=8-10-x=-2x=2now put x value in first equation2x+y=52(2)+y=54+y=5y=5-4y=1so x=2 and y= 1

x=18/7,y=-1/7

х=2 αnd ч=1 αftєr ѕσlvíng hσw tσ ѕσlvє fírѕt єquαl єq1 αnd αq2

let,2x+y=5___(1)3x+2y=8___(2)Multiplying equation (1) by 2,4x+2y=10___(3)Subtracting equation (2) from equation (3), 4x+2y=10- 3x+2y=8_____________ X. =2X=2put X=2 in equation (1),2×2+y=5 4+y=5 y=5-4 y=1

X=2 and y=1 is solution

x = 2 and y = 1 this right answer

x = 3 and y = -1 equally

x=-3,y=1 is your correct answer

x=2 y=1 is the write answer

2x+y=5___________(1)×23x+2y=8_____________(2)तब,4x+2y=10_________(3)3x+2y=8___________(2)_____________________घटाने परx+0=2X=2,समीकरण (1)मे X=2 रखने पर 2x+y=5___(1)2×2+y=54+y=5y=5-4y=1

13.

(ii) ta&sin-14)(ita in

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14.

s by using cross-multiplication.3x2x 12

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(2(2)-3(3))/6x=1/12-5/x=1/2so x=-10

15.

The 4h term of an AP is-13 and its 11th term is -34. Find the commonifference.

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16.

16. Solve the equations using cross multiplication method.

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bx/a + ay/b = a2+ b2......... eq1

x + y = 2ab .... eq 2..

frm eq 1.. b2x + a2y / ab = a2+ b2

-> b2x + a2y = a3b + b3a

-> b2x - b3a = a3b - a2y

->b2( x - ab ) = a2( ab - y )

-> frm eq 2 ... b2( x - x/2 + y/2 ) = a2( x/2 + y/2 - y )

-> b2( x/2 - y/2 ) = a2( x/2 - y/2 )

-> b2x - b2y = a2x - a2y

-> x ( b2- a2) = y ( b2- a2)

-> x = y ..

put the value of x in eq 2.... 2y = 2ab

17.

use identity(X+8) (X-10

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(x + a)(x + b) = x^2 + (a + b)x + ab(x + 8)(x - 10) = x^2 +(-8+ 10)x - 80 = x^2 - 2x - 80

use identity(x+8)(x-10)

Identity used to solve the question

18.

= a +by 22 +4 = 2 solve by crossmultiplication method

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Given (x/a) + (y/b) = a + bMultiply by (1/a) both sides, we get(x/a^2) + (y/ab) = 1 + (b/a) → (1)Given other linear equation as (x/a2) + (y/b^2) = 2 → (2)Subtract (2) from (1), we get(x/a^2) + (y/ab) = 1 + (b/a)(x/a^2) + (y/b^2) = 2----------------------------------(y/ab) − (y/b2) = (b/a) − 1⇒ y[(b − a)/ab^2] = (b − a)/a∴ y = b^2Puty = b^2in (x/a^2) + (y/b^2) = 2⇒ (x/a^2) + (b^2/b^2) = 2⇒ (x/a^2) + 1 = 2⇒ (x/a2) = 1∴ x = a^2

shahs inch she'd KFC fix Hf no problem at all the

19.

ajantly = a? tb? solve by crossmultiplication method.

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20.

Solve for 'x' and y' using cross-multiplication method:ax bya+b; ax-by 2ab.

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21.

By using cross multiplication method 2x + y=5 , 3x + 2y = 8

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22.

Answer: A district has a population of 296000 of which 166000 are male. 50% of the total number is educated. If 70% of total men are educated, then what is the number of educated women

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Total population=296000No.of males=166000No.of females=296000-166000=130000

Given that 50% of population are literate,Then,no.of literate people=50/100×296000=148000

also given that 70% males are literate.Then,No.of literate males=70/100×166000 =116200

Now,No.of literate females=(literate people-literate males)No.of literate females=148000-116200No.of literate females=31800

Hence no.of literate females=31800

Total population=296000No.of males=166000No.of females=296000-166000=130000

Given that 50% of population are literate,Then,no.of literate people=50/100×296000=148000

also given that 70% males are literate.Then,No.of literate males=70/100×166000 =116200

Now,No.of literate females=(literate people-literate males)No.of literate females=148000-116200No.of literate females=31800

Hence no.of literate females=31800

23.

use identity to solve the following (3y+4) (3y+4)

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a=3y b=4now (a+b)^2=a^2+b^2+2ab(3y+4)^2=9y^2+16+2×3y×4 =9y^2+16+24y

24.

Use the first law to simplify the following,a) logio6 + logio3,

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25.

towers of height 28 m and 36 m are built at a distance of 15 m. Find thof the towers.e distance between the tops

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As the difference between them is 36-28=8cm

By Pythagoras theorem,

15²+8²=(distance bet. Their tops) ²

225+64

√289 =distance between tops

17m=distance between Their tops

26.

e OO Ty= tan’0sin’0

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27.

itaclltheoppositestecorneraredwalkedtheoppofathetorectangularsame point diagonally to the opposite corner. What is the distance walked by LovieenTwo towers of height 28 m and 36 m are built at a distance of 15 m. Find the distance between the topsfrompoint diagonallyfield. Lovleenof the towers.15 m

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28.

What is flow chart? Write a function of following sybolsuse in flow chart

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sphere rhombus rectangle quadrilateral

29.

solve the following pair of linear equation in two variables by the cross- multiplication method:x/3 + y/5 = 1 and 7x - 15y =21

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30.

Two persons, 27 km apart, setting out at the same time aretogether in 9 hours if they walk in the same direction, but in 3 hours29.if they walk ia opposite directions: find their rates of walking.

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Let a = the walking rate of the 1st person which is the fastest walker

let b = the walking rate of the 2nd person

Given9(a - b) = 27(walking the same direction)

3(a + b) = 27(walking in opposite directions)on simplifying

a-b=3a+b=9

Solving,

2a = 12a = 12/2

a = 6 km/hr, 1st person's ratethen

6 + b = 9b = 3 km/hr, 2nd person's rateLike if you find it useful

31.

Ty छुधज्य्े> कान ५४

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32.

+Ty+ 10) = (y

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33.

e= Ty AR

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If we put x = 2 we will get 0/0 form so using L'hospital rule lim x ->2 (6x-1)/(2x) = (6×2-1)/2×2 = 11/4

34.

If CP =き1835, overhead expense = 145and profit percentage-12%, then what is tselling price?a) 2217.60b) 2216.70c)き2216d) 2214

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C.P.=1835expense=145so total C.P.=1980profit is 12%so S.P.=2217.60

35.

5x + Ty from 3x + 5y

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3x+5y-5x-7y=-2x-2y=-2(x+y)

36.

xpHess 3 inAmty

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Let 0.3 bar be x

x = 0.3333...... (1)

Multiply by 10

10x = 3.333 ..... (2)

(2) - (1)

9x = 3

x = 3/9

x = 1/3

37.

27x° sTyX 3

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27x³ - 64/x³

(3x)³ - (4/x)³

(3x - 4/x) ( (3x)² + (4/x)² + 3x × (4/x) )

(3x - 4/x) ( 9x² + 16/x² + 12)

38.

Find aTy咻-

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thanks😃

39.

18. A man sells a handset for? 5600 and incurs a loss of 20%. He sells a second handset at aprofit of 50%. If on the whole transaction, he neither gains nor loses, find the cost priceof the second handset.

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40.

PA MPCD and GH are respectively the bisectorsof ZACB and 4 EGF such that D and H lieon sides AB and FE ofΔ ABC and Δ EFGrespectively. IA ABC-a FEG, show that:CD ACGH FG(iii) Δ DCA ~ Δ HGF

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thanks

41.

A Ia the folkow ing APs fiasd the missing torwns in the htorms in the h0 2

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a1= 2a3= 26a2 = 26-2 = 24

42.

6. A student goes to school at the rate of 20 km/h and reaches 6 minutes late. Iftravels at the speed of 3 km/h, he is 10 minutes early. What is the distance to school?

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speed :- 2 1/2 = 2.5 km/hr6 min = 0.1 hour10 min = 0.16 hour

distance = time difference*product of speeds / difference of speed

time taken = 6 min + 10 min = 16 min = 0.267 hourproduct of speed = 2.5*3 = 7.5difference of speed = 3 - 2.5 = 0.5

applying the formula ,

distance = 0.267*7.5/0.5 = 2.0025 /0.5 = 4.005 km = 4 km (approx.)

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43.

Evaluate the determinants

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= (2 × (-1) - (-5 × 4) ) = - 2 +20= 18 ANS

gandhiji nu puru name

18 is the right answer of the following

18 is the right answer of the following

(2×(-5×4))=-2+20=18and is correct

18 is the right answer

44.

29. 1wo petogether in 9 h18. The sum of a number of two digits and of the number formedby reversing the digits is 110, and the difference of the digits is 6: findthe numbers.if they walk ia30. A family

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Digit at one's place= x:: digit at tens place=y number= 10y+x:::: reversed number=》10x+y:::: 1st condition=10y+x+10x+y=110;;;; or 11x+11y=110:::: or x+y=10 ;;;;; 2nd condition= x_y=6 comparing 1st &2nd:;;; ;we get x=8 & y= 2 :, required number=28

45.

uribS IAAm

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since the point is on y axis , so x-coordinate is 0

and distance along y from x axis is 4.

so, point is (0,4)

is this correct

okay one answer is (0,4) and another is (0,-4)

because we have to find both +ve and -ve coordinates

yes now its perfectly correct

from which country you belong

46.

The Sum of two members is 15 and the difference of their squares is 15.the difference of the Number is .

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47.

A man sells a sari for RS. 2100 and makes a profit of 16 2/3% . Find the cost price of the sari

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48.

A man sells a sari for Rs. 2100 and makes a profit of 16 2/3 % . Find the cost price of the sari.

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49.

A man buys an article for 50 and makes overhead exprice. At what price must he sell it to gain 20%?penses which are 10% of the cost

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50.

29. Prove that the largest rectangle inscribed in a given circle is a square

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