Aptitude and Reasoning Questions

Q:

What percent of 7.2 kg is 18 gms ?

A) .25% B) .5%
C) .75% D) 1%
 
Answer & Explanation Answer: A) .25%

Explanation:

Required percentage = (18/7200 * 100)% =  1/4% = 0.25%

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Filed Under: Percentage

201 53642
Q:

What is the first term of an arithmetic progression of positive integers ?

(I) Sum of the squares of the first and the second term is 116.

(II)The fifth term is divisible by 7.

A) Only a is sufficient B) Only b is sufficient
C) Both a & b are necessary D) None
 
Answer & Explanation Answer: A) Only a is sufficient

Explanation:

The sum of square of two no is 116 i.e no lie 1-11, because 11x11 =121 which is greater than 116
again after cheaking all possible pair of no only 4 and 10 satisfy this condsn , again the progression is of positive integer so 10 cant not be 1st term
so the 1st term is 4,
but from the 2nd we cant able to find the 1st term

so only 1st statement is sufficient to answer the question

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Filed Under: Statement and Conclusions
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

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Q:

A man sitting in a train which is traveling at 50 kmph observes that a goods train, traveling in opposite direction, takes 9 seconds to pass him. If the goods train is 280 m long, find its speed.?

A) 60 B) 62
C) 64 D) 65
 
Answer & Explanation Answer: B) 62

Explanation:

Relative speed =280/9  m / sec = (280/9*18/5)  kmph = 112 kmph.

 

Speed of goods train = (112 - 50) kmph = 62 kmph.

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Filed Under: Problems on Trains

140 53550
Q:

Arrange the given words in the sequence in which they occur in the dictionary.


i. Obstacle
ii. Obscure
iii. Obsession
iv. Obstruct

A) iii, iv, i, ii B) i, iv, iii, ii
C) ii, iii, i, iv D) iv, iii, ii, i
 
Answer & Explanation Answer: C) ii, iii, i, iv

Explanation:
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Filed Under: Logical Sequence of Words
Exam Prep: AIEEE , Bank Exams , CAT

6 53539
Q:

Find the odd man out?

16, 254, 1296, 4096, 10000

A) 16 B) 254
C) 1296 D) 10000
 
Answer & Explanation Answer: B) 254

Explanation:

The given series 16, 254, 1296, 4096, 10000 follows a pattern that

 

24, 44, 64, 84, 104,...

Hence, the odd man in the series is 4 x 4 x 4 x 4 = 256 not 254.

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3 53521
Q:

In the following question, select the related word from the given alternatives.

Saw : Carpenter : : Axe : ?

A) Ironsmith B) Woodcutter
C) Cobbler D) None of those
 
Answer & Explanation Answer: B) Woodcutter

Explanation:
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Filed Under: Analogy

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Q:

A sum of Rs. 427 is to be divided among A, B and C such that 3 times A’s share, 4 tunes B’s share and 7 times C’s share are all equal. The share of C is :

A) 84 B) 140
C) 196 D) 240
 
Answer & Explanation Answer: A) 84

Explanation:

3A = 4B = 7C = k,Then A = k/3, B = k/4 and C= k/7.

A : B : C = k/3 : k/4 : k/7 = 28:21 :12.

Cs share = Rs. [427 x (12/61)] = Rs. 84

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Filed Under: Ratios and Proportions

183 53479
Q:

Sam ranked 9th from the top and 38th from the bottom in a class. How many students are there in the class ?

A) 45 B) 47
C) 46 D) 48
 
Answer & Explanation Answer: C) 46

Explanation:

Number of students in class = (8 + 1 + 37) = 46

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