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.

find the compound interest if the amount of certain principal after two years is 4036.80 Rs at the rate of 16 p.c.p.a

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2.

ul) पाणप(IV)माणामाण(ख) यदि sine = cosece तथा 0 <<तो 0 का मान होगा-

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3.

Identify the following as rational orirrational numbers. 0 Give the decimalrepresentation of rational numbers:( 4 ) 3 18 (1) 1-4(in 9 (v) 164 (ul) sido97

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4.

o asia ul anippe aupasezuodaid arududde0di

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oi= 2/5 + 5/2 - 1/10

= 4+25-1/10

= 28/10 = 2.8

5.

ltUlk-aiswhichisequidistantfrom (-3, -4) & (4, -3)13a plane, show that ABCD is29. If A (3, 0), B(4, 5), C (-1, 4) and D (-2, -1) be four points inrhombus but not a square.

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6.

Prove that : \frac { 1 } { 10 ! } + \frac { 1 } { 11 ! } + \frac { 1 } { 12 ! } = \frac { 145 } { 12 ! }

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1/10!+1/11×10!+1/12×11×10!=1/10!(1+1/11+1/132)=(132+11+1)/132×12!=145/12×11×10!=145/12!

I have solved this question

7.

- एकसमान बल (4i+] +3k) N के अन्तर्गत कोई कण स्थिति31+2]-6k से 14i +13] +9k तक गति करता है। यदिविस्थापन मीटर में हो तो किया गया कार्य होगा ।

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8.

.When Raju multiplies a certain number by 17 and adds 4 to the product, he gets 225. Findthat number.

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let number =xAccording to Question17×x+4=22517x+4=22517x=225-417x=221x=221÷17x=13So number is 13

9.

5. A field is 120 m long and 70 m broad. In one corner of the field a pit, which is 20mremaining part of the field. Find the rise in the level of the fieldt. The earth taken out of it is evenly20 m broad and 8 m deep, has been dug outover the6. Awall of 12 m long, 35 cm wide and 5 m high is made of hrich

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10.

When Raju multiplies a certain number by 17 and adds 4 to the product, he gets 225. Finthat number.5.

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11.

ll Ul LiPee consecutive natural numbers is 114. Find the nWhen Raju multiplies a certain number by 17 and adds 4 to the product, be gets 225.that number.If a number is tripled and the

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Let x be the unknown number.

So the equation is :- 17x + 4 =225 Transpose 4 to RHS.17x = 225-417x= 221x= 221 ÷ 17x = 13

let the number be x,According to question17x + 4 = 22517x = 221x = 221/17x = 13

12.

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13.

The Cartesian equation of the line passingthrough the points2i+ j +3k,-4i+3j-k is

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14.

§in 75°+sin15°= 3 .

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(Sin75+Sin15).

We will expand it by using the Identity:

Sina+Sinb=2 sin(a+b)/2•cos(a-b)/2.

Hence, we get

Sin75+Sin15

= 2•sin(75+15)/2•cos(75–15)/2

= 2•sin45•cos30

= 2×1/√2×√3/2

=√3/√2*√2/√2=√6/2

15.

identity

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identity - the fact of being who or what a person or thing is, a close similarity or affinity, a transformation that leaves an object unchange

16.

Find the value of(cos15 + sin 15)/(cos15° -sin15)

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17.

If marked price of an article is Rs. 350 and it is sold at a cash discount of 15%, find its selling price

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18.

sin75+sin15cos 75 +cos151) 33) 24) 0

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19.

Sin15°Cos75° + Cos15° Sin75°Eval e —दल an 5 tan 30 tan 35 tan 55 (का 85"I, ८०

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20.

1.Given sin(A+B)-Sin A cos B + cos A sin B, find the value of sin15

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sin(75°)=sin(45+30)=sin45cos30+cos45sin30=(1/√2)(√3/2)+(1/√2)(1/2)=(√3+1)/2√2=0.9659

21.

a Find the value ofcos15 +sin 150cos15 sin15

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22.

VTwo dice are thrown at the same time and the product of numbers appearing on them isnoted. Find the probability that the product is a prime number

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maximum outcomes:36

possible outcomes as product of prime

numbers: (1,2), (2,1), (1,3), (3,1), (1,5), (5,1).

therefore P(getting product a prime number)

=>6/36

=>1/6

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23.

Two dice are thrown at the same time and the product of numbers appearing on them isnoted. Find the probability that the product is a prime number

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GIven that two dice are rolled.

Then the probability of outcomes n(S) = 6 * 6

= 36.

Let E be the event of getting a product less than 9.

The number whose product is less than 9

= ,{1,2},{1,3},{1,5},{2,1},}{3,1},,{5,1},

= 6

Therefore the required probability

P(E) = n(E)/n(S)

= 6/36

= 1/6

24.

Find the Polar co-ordinates of points whose cartesian co-ordinates are (1, 11)& (-1, root3)

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25.

V Two dice are thrown at the same time and the product of numbers appearing on them isnoted. Find the probability that the product is a prime number

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maximum outcomes:36

possible outcomes as product of prime

numbers: (1,2), (2,1), (1,3), (3,1), (1,5), (5,1).

therefore P(getting product a prime number)

=>6/36

=>1/6

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26.

lll. SHORT ANSWER ITPQ1. Give protective features of the nervous system.ranium. The brain

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The brain is protected by the skull (cranium), cerebrospinal fluid and 3 protective membranes (Meninges).

The spinal cord is protected similarly but with vertebrae instead of the cranium.

27.

7. Two dice are thrown at the same time and the product of numbers appearing on them is noted.Find the probability that the product is less than 9.

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28.

A coat is sold at a discount of 15%. If it isat sold 510, find the discount and themarkedprice of the coat.

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Selling price = 510Discount % = 15

Marked price = (100/100 - discount%) × Selling price= (100/100-15) × 510= (100/85 ) × 510= 51000/85= Rs 600

Dicount = Discount%/100 × Marked price= 15/100 × 600= 9000/100= Rs 90

Therefore discount = 90 & Marked price = 600

29.

\frac{\cos 15-\sin 15}{\cos 15+\sin 15}=\frac{1}{\sqrt{3}}

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30.

If a matrix A satisfies a relation A prove that A exists and that AEItA, being an identitynatrix

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Given that A^2+A - I = 0

If we multiply both sides by A^-1we have,

A^-1(A^2+ A - I) = A^-1 .0 = 0

Hence, A +I - A^-1= 0

This gives A-1= (A + I)

31.

\frac { 70 \times 5 + 15 } { 210 \div 15 + 15 } = ?

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by BODMAS rule(350+15)/(14+15)=365/29=12.5862

32.

(sin(15^circ) %2B cos(15^circ))/(-sin(15^circ) %2B cos(15^circ))

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Multiply N and D by 1/√2

1/√2 cos15 + 1/√2 sin 15)/ ( 1/√2 cos 15 - 1/√2 sin 15)

sin 45 cos 15 + cos45 sin 15)/( sin 45 cos 15 - cod 45 sin 15)

sin ( 45 +15)/ sin( 45-15)

sin ( 60)/ sin 30

√3

1/ under root 3 is the right answer of this problem

33.

u. In which quadrant are the points whose r co-ordinate is negative and y co-ordinate is positive?

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In second quadrant X is negative and y is positive.

34.

(a) (-00, a) u (a, oo)(b) (a, -co) U (oo, a)(c) (-oo, a)n (a, co)(d) of these

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35.

0°4500559

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Angle BPC = 180 - 50 - 55 = 75.So angle DPA = 180 - 75 = 105.Angle ADC = 105 + 30 =135 external angle property

THANK YOU

angle adc નો સમજાયુ

36.

DuICOCit ariuUsing a protractor, draan angle of 110°. Bisect it to get an angle of measure 559

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37.

2 35० :; sin”135° + cos® 120° —sin® 150°+tan®150°0 &2 o o )* <in2120°—cos” 180°+tan”120°+tan” 135°+cos180° :दा a8 |

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38.

®Find dy, if x= a caso, y = to Coro.K

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39.

92. यानि ०८०४; 031 ३8% 2..| x" —8x _+l)®,w dy— जमभानdxR

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40.

\left. \begin{array} { l } { i } 32 \% \text { of } 425 } \\ { \text { (iv) } 136 \% \text { of } 70 } \end{array} \right.

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i) 32% of 42532/100 × 425 = 136

41.

The height of two towers is 150 metres and 136 metres respectively. If the distancepetween their bases is 48 metres. Find the distance between their tops.

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42.

1. Let A =To0 11. Let A= , show that (al + bA)" = a1 + na" - A, where I is the identityLO OJmatrix of order 2 and ne N.show that a

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43.

In fig, AB||DC and AB=DC. Prove that ABD =cong CDB. Show that AD||BC.

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In ∆ABD and ∆ BDCAD = DC (given)AD = BC ( given)BD = BD (common)by SSS rule ∆ABD is congurent ∆DCBso angle ABD = angle CDBso alternative angle are equal so AB||DC

44.

cribe any three major problems faced by Indian cotton weavers in nineteenthicentury

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Major problems faced by the Indian cotton weavers:1.Their export market collapsed.2.The local market shrunk.3.Increase in price of raw cotton.

45.

9 If the radii of the ends of a bucket 45cm high are 28cm and 7cm, what is its capacity?(a) 60.52 litre(0) 43.67 litre(b) 48.51 litre(d) 39.61 litre

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46.

inanInah

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47.

lowing distribution shows the daily pocket allowance of children of a localityThe mean pocket allowance is Rs 18. Find the missing frequencyDaily pocketallowance (in Rs)11-13 13-15 15-17 17-19 19-21 21-23 23-Number of children713

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48.

7. If the 4th and 9th terms of à G.P. De anu l8. The 3rd term of a G.P. is the square of the first and 5th term is 64. Find the G.P0 0 and 2560 respectively

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The third term of a GP = square of its firsttermar^2 = (a)^2r^2 = a^2÷ar^2 = a .......(1)now it is given that 5th term is 64 so ar^4 = 64a(r^2)^2 = 64from eq (1)a(a)^2 = 64a^3 = 64a = 4now from eq (1) r^2 = a r = a^(1/2)r. = 4^(1/2)r. = 2now we have a and r so we can calculate the first six terms of the GP.The first six terms if the GP are

a, ar, ar^2, ar^3, ar^4, ar^5now putting the value if a and r we have first six terms of the GPSo the terms are

4, 8, 16, 32, 64, 128

49.

Ann bought a pair of skates at a sale where the discount given was 20%. If theamount he pays is 1,600, find the marked price.I purchased a hair-dryer for? 5,400 including 8% VAT. Find the price before VATwas added.9.10.

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50.

Or90° If AD-, 23 cm,in the figure a circle is inscribed in a quadrilateral ABCD in which 2BAB 29 em and DS Cm, find the radius 'r' of the circle

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