35
Q:

# A fires 5 shots to B's 3 but A kills only once in 3 shots while B kills once in 2 shots. When B has missed 27 times, A has killed :

 A) 30 birds B) 60 birds C) 72 birds D) 90 birds

Answer:   A) 30 birds

Explanation:

Let the no of shots be x. Then,

Shots fired by A =(5/8)x

Shots fired by B = (3/8)x

Killing shots by A = 1/3 of (5/8)x  = (5/24)x

Shots missed by B = 1/2 of (3/8)x = (3/16)x

(3/16)x = 27 $⇒$ x =144

Birds killed by A = (5/24)x = (5/24)*144 = 30

Q:

Simplify the fraction?

5 (2/7) - 3 (1/14) - 2 (1/14) - 1 (1/7) = ? + 3 (1/17)

 A) -4 (1/17) B) 5 (2/17) C) -2 (1/17) D) 3 (3/17)

Answer & Explanation Answer: A) -4 (1/17)

Explanation:

Given fraction is 5 (2/7) - 3 (1/14) - 2 (1/14) - 1 (1/7) = ? + 3 (1/17)

It can be written as

(5 - 3 - 2 - 1) + (2/7 - 1/14 - 1/14 - 1/7) = ? +  3 (1/17)

-1 + 0 - 3 (1/17) = ?

=> ? = -4 (1/17)

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1 25
Q:

5 + 2 x 10/2 = ?

 A) 15 B) 35 C) 10 D) 20

Answer & Explanation Answer: A) 15

Explanation:

Using BODMAS Rule,

First solve division, mutiplication and Addition

So here 10/2 = 5

Then 2 x 5 =  10

Now, 5 + 10 = 15.

Hence, 5 + 2 x 10/2 = 15.

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3 43
Q:

Simplify the following :

 A) 10 B) 24 C) 36 D) 40

Answer & Explanation Answer: A) 10

Explanation:

Given equation can be written as

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0 86
Q:

Simplify the following expression?

40% of () = 48

 A) 24 B) 22 C) 20 D) 18

Answer & Explanation Answer: C) 20

Explanation:

We know that

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1 85
Q:

Derivative of sinx by first principle?

 A) -sinx B) -cosx C) cosx D) sinx

Answer & Explanation Answer: C) cosx

Explanation:

Thus, the derivative of sinx by first principle is cosx.

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2 78
Q:

Simplify the following and find the value of ?

 A) 1134 B) 1237 C) 1187 D) 1249

Answer & Explanation Answer: A) 1134

Explanation:

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4 190
Q:

Simplify

 A) 10 47/60 B) 11 45/73 C) 11 47/36 D) 10 35/48

Answer & Explanation Answer: A) 10 47/60

Explanation:

The given equation is in Mixed fraction.

Now to solve this type of fractions,

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8 158
Q:

 A) 68947 B) 69874 C) 70000 D) 76000

Answer & Explanation Answer: C) 70000

Explanation:

= 70,000.

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10 388