Aptitude and Reasoning Questions

Q:

The expression of 5008 km in scientific notation is

A) 50.08 x 10^3 kms B) 5.008 x 10^-3 kms
C) 5.008 x 10^3 kms D) 500.8 x 10^3 kms
 
Answer & Explanation Answer: C) 5.008 x 10^3 kms

Explanation:

We know that, any decimal number when multiplied by the multiples of 10, the decimal point moves to right the number of zeroes in the multiplying number.

 

For example :: 

0.0410 x 100 = 4.10 (Number of zeros in 100 are 2. So, the decimal point in 0.0410 moves two places to the right and becomes 4.10.)

 

Similarly, here in the option C) 5.008 x 10^3 kms it makes 5008 kms as the number of zeros in 10^3  i.e,  1000 are 3 and 5.008 becomes 5008.

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Filed Under: Arithmetical Reasoning
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

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Q:

Which sentence contains both an adverb and a conjunction?

A) Adam crept silently up the stairs, but couldn't slow his heartbeat. B) The storm caused flooding as predicted.
C) Sneha was a kind person, but she hated people who spread rumors. D) Do you want the shrimp or the crab?
 
Answer & Explanation Answer: A) Adam crept silently up the stairs, but couldn't slow his heartbeat.

Explanation:

The sentence which contains both an adverb and a conjunction is "Adam crept silently up the stairs, but couldn't slow his heartbeat."

 

Here, Adverb - Silently and Conjunction - But.

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Q:

If x / y is an integer, which of the following statements need NOT always be true?

A) both x and y are integers B) only x is a integer
C) both are negative D) none
 
Answer & Explanation Answer: A) both x and y are integers

Explanation:

In case (A), x and y could, for example, both be equal fractions and x/y would be an integer.

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Filed Under: Numbers
Exam Prep: GRE

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Q:

Given a principal of $12,000 with a compound amount of $17,631.94 and interest rate of 8% compounded anually,what is the time peroid in years?

A) 3years B) 4years
C) 5years D) 6years
 
Answer & Explanation Answer: C) 5years

Explanation:

M=P(1+i)^n

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Q:

What is the value of 729+72.9+7.29

A) 30.5 B) 32.33
C) 35.6 D) 38.23
 
Answer & Explanation Answer: D) 38.23

Explanation:
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Q:

Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line.

     (X)                     (1)                 (2)                 (3)                 (4)

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

Explanation:
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Filed Under: Paper Folding

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Q:

How much water (in litres) must be added to 80 litres solution of milk and water containing 10% milk, so that it becomes a 5% milk solution?

A) 10 B) 20
C) 40 D) 80
 
Answer & Explanation Answer: D) 80

Explanation:
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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

If a+b+c = 6 and ab+bc+ca = 1, then the value of bc(b+c) + ca(c+a) +ab(a+b) +3abc is

A) 33 B) 66
C) 55 D) 23
 
Answer & Explanation Answer: B) 66

Explanation:
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