Aptitude and Reasoning Questions

Q:

In a bag, there are 8 red, 7 blue and 6 green flowers. One of the flower is picked up randomly. What is the probability that it is neither red nor green ?

A) 13

B)821

C)621

D)2021

A) Option A B) Option B
C) Option C D) Option D
 
Answer & Explanation Answer: A) Option A

Explanation:

Total number of flowers = (8+7+6) = 21.

 

Let E = event that the flower drawn is neither red nor green. 

= event taht the flower drawn is blue. 

 

--> n(E)= 7 

--> P(E)=  721=13 

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Filed Under: Permutations and Combinations
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Q:

Which of the following terms follows the trend of the given list?

YXXXXXXY, YXXXXXYX, YXXXXYXX, YXXXYXXX, YXXYXXXX, _______________

A) YYXXXXXX B) YXXXXXXY
C) YXXXXXYX D) YXYXXXXX
 
Answer & Explanation Answer: D) YXYXXXXX

Explanation:
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Q:

One card is drawn from deck of 52 cards, each of the 52 cards being equally likely to be drawn. Find the probability that the ball drawn is red.

A) 1/3 B) 1/2
C) 1/4 D) 1/6
 
Answer & Explanation Answer: B) 1/2

Explanation:

Total number of elementary events = 52

 

There are 26 red cards,out of which one red card can be drawn in 26C1 ways =26.

 

So,required probability = 26/52 = 1/2

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Filed Under: Probability

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Q:

A bike runs at the speed of 35 km/h when not serviced and runs at 55 km/h, when serviced. After servicing the bike covers a certain distance in 5 h. How much approximate time will the bike take to cover the same distance when not serviced?

A) 8 hrs B) 7.5 hrs
C) 7 hrs D) 6.5 hrs
 
Answer & Explanation Answer: A) 8 hrs

Explanation:

Given speed of the bike after servicing = 55 kmph

Time taken for travelling some distance at 55 kmph = 5 hrs

Then, 

Distance = Speed x Time = 55 x 5 = 275 kms.

Now, 

Speed of the bike before servicing = 35 kmph

Distance = 275 kms

Now, Time = Distance/Speed = 275/35 = 7.85 hrs =~ 8 hrs.

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Filed Under: Time and Distance
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Q:

Who among the following economists gave the concept of "economies of scale". Which says "many goods and  services can be produced more cheaply in long series"?

A) Edward C.Prescott B) Amartya Sen
C) Gray S.Becker D) Paul Krugman
 
Answer & Explanation Answer: D) Paul Krugman

Explanation:
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Filed Under: Verbal Reasoning - Mental Ability
Exam Prep: Bank Exams
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Q:

Choose the pair in which the words are differently related?

A) Jewellery : Gold B) Table : Wood
C) Shirt : Fabric D) Iron : Axe
 
Answer & Explanation Answer: D) Iron : Axe

Explanation:

In all other pairs, first is a product made from the second.

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Filed Under: Classification

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Q:

A number when subtracted by 1/7 th of itself gives the same value as the sum of all the angles of a triangle. What is the number?

A) 420 B) 210
C) 70 D) 35
 
Answer & Explanation Answer: B) 210

Explanation:

Let the required number be 'p'

We know, sum of angles in a triangle are 180 deg

According to given data,

p - p/7 = 180

7p - p = 180 x 7

=> 6p = 1260

=> p = 1260/6 = 210

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Filed Under: Problems on Numbers
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Q:

Opening in a wall to let in air or light

A) Ceiling B) Door
C) Window D) All the above
 
Answer & Explanation Answer: C) Window

Explanation:

The Opening in a wall to let in air or light is nothing but a Window.

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