Aptitude and Reasoning Questions

Q:

A flagstaff 17.5 m high casts a shadow of length 40.25 m. What will be the height of a building, which casts a shadow of length 28.75 m under similar conditions ?  

A) 14 cm B) 13.5 cm
C) 12.5 cm D) 11.4 cm
 
Answer & Explanation Answer: C) 12.5 cm

Explanation:

Let the required height of the building be x meter

More shadow length, More height(direct proportion)

Hence we can write as

(shadow length) 40.25 : 28.75 :: 17.5 : x
⇒ 40.25 × x = 28.75 × 17.5
⇒ x = 28.75 × 17.5/40.25
= 2875 × 175/40250
= 2875 × 7/1610
= 2875/230
= 575/46
= 12.5 cm

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Filed Under: Height and Distance
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17 5030
Q:

National Aluminium Company has moved Georgia from a position of shortage to self-sufficiency in the metal. 

Conclusions: 

1. Previously, Georgia had to import aluminium

2. With this speed, it can soon become a foreign exchange earner 

A) Only 1 follows B) Only 2 follows
C) Either 1 or 2 follows D) Both 1 and 2 follow
 
Answer & Explanation Answer: D) Both 1 and 2 follow

Explanation:

According to the statement, National Aluminium Company has moved Georgia from a position of shortage in the past to self-sufficiency in the present. This means that previously, Georgia had to import aluminium. So, I follows. Also, it can be deduced that if production increases at the same rate, Georgia can export it in future. So, II also follows. 

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1 5028
Q:

The average score of boys in an examination in a school is 81 and that of the girls is 83 and the average score of the school is 81.8. Then what will be ratio between the number of girls to the number of boys, in the examination?

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

Explanation:

Let the number of boys = b

Let the number of girls = g

From the given data,

 

81b + 83g = 81.8(b + g)

81.8b - 81b = 83g - 81.8g

0.8b = 1.2g

b/g = 1.2/0.8 = 12/8 = 3/2

=> g : b = 2 : 3

 

Hence, ratio between the number of girls to the number of boys = 2 : 3.

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Filed Under: Average
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24 5026
Q:

Jackie deposits $325 in an account that pays 4.1% interest compounded annually. How much money will Jackie have in her account after 3 years?

A) 346.64 B) 356.64
C) 366.64 D) 376.64
 
Answer & Explanation Answer: C) 366.64

Explanation:

A=P(1+r)^t

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Filed Under: Compound Interest
Exam Prep: Bank Exams
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0 5026
Q:

Solve this inequality 3b - 7 < 32?

A) b = 13 B) b < 13
C) b > = 13 D) b < = 13
 
Answer & Explanation Answer: B) b < 13

Explanation:

The given 3b - 7 < 32 can be solved as

3b - 7 < 32

3b < 39

b < 13.

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Filed Under: Simplification
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12 5023
Q:

Rearrange the following five sentences in proper sequence so as to for a meaningful paragraph, then answer the questions given below them.


1. After Examining him, the doctor smiled at him mischievously and took out a syringe.
2. Thinking that he was really sick, his father summoned the family doctor.
3. That day, Mintu wanted to take a day off from school
4. Immediately, Mintu jumped up from his bed and swore that he was fine
5. Therefore, he pretended to be sick and remained in bed.

A) 34215 B) 35241
C) 35214 D) 34251
 
Answer & Explanation Answer: C) 35214

Explanation:
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Filed Under: Deriving Conclusions From Passages
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5 5018
Q:

The calendar for the year 2007 will be the same for the year ?

A) 2014 B) 2019
C) 2021 D) 2018
 
Answer & Explanation Answer: D) 2018

Explanation:

Count the number of odd days from the year 2007 onwards to get the sum equal to 0 odd day.

Year : 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
Odd day : 1 2 1 1 1 2 1 1 1 2 1

Sum = 14 odd days => 0 odd days.
Calendar for the year 2018 will be the same as for the year 2007.

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Filed Under: Calendar
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14 5017
Q:

You are in the parking area of a shopping complex. And, suddenly the electricity fails and there is total darkness. You will 

A) try and take help from someone around B) crawl towards your vehicle
C) shout for help D) wait till the lights come
 
Answer & Explanation Answer: B) crawl towards your vehicle

Explanation:
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91 5017