Aptitude and Reasoning Questions

Q:

The inner circumference of a circular race track, 14m wide is 440m. Find the radius of the outer circle.

A) 84m B) 24m
C) 44m D) 54m
 
Answer & Explanation Answer: A) 84m

Explanation:

let inner radius be r meters. 

2πr=440r=440×744=70mradius of outer circle =70+14m  

 

Therefore, Radius of outer circle = 70 + 14 = 84m

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Q:

Arzoo was born on 25th January 2015, while Aastha was born 554 days later. On which date was Aastha born?

A) 2nd August 2016 B) 31st July 2016
C) 1st August 2016 D) 3rd August 2016
 
Answer & Explanation Answer: C) 1st August 2016

Explanation:
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79 11467
Q:

In one hour, a boat goes 12 km/hr along the stream and 6 km/hr against the stream. The speed of the boat in still water (in km/hr) is:

A) 9 B) 8
C) 7 D) 7.5
 
Answer & Explanation Answer: A) 9

Explanation:

Speed in still water = Average of Speed in Upstream and speed in Downstream

= 1/2 (12 + 6) kmph = 9 kmph.

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Q:

If a positive integer n, divided by 5 has a remainder 2, which of the following must be true?

A) n is odd B) n + 1 cannot be a prime number
C) (n + 2) divided by 7 has remainder 2 D) n + 3 is divisible by 5
 
Answer & Explanation Answer: D) n + 3 is divisible by 5

Explanation:

You can find the integers which when divided by 5 have a remainder 2 by adding 2 to all multiples of 5. So we have n = 7 , 12, 17, 22 etc.

From this series we can see that n does not have to be odd.

Also n + 1 can be a prime because, for example, 12 + 1 = 13

And (n + 2) / 7 has a remainder 2 in some cases but not all.

Remember the question asks us for what MUST be true, and we see that none of the statements are true in all cases. However, adding 3 to any of the values of n will always give a multiple of 5.

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Filed Under: Numbers
Exam Prep: GRE

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Q:

What was the day on 16th June,1993?

A) Saturday B) Monday
C) Wednesday D) Friday
 
Answer & Explanation Answer: C) Wednesday

Explanation:

16 June, 1993 = (1992 years + Period from 1.1.1993 to 16.6.1993)

Odd days in 1600 years = 0

Odd days in 300 years = 1

92 years = (69 ordinary years + 23 leap year) = (69 x 1 + 23 x 2)= 3 odd days

Jan. Feb. March April May June

(31 + 28 + 31 + 30 + 31 + 16 ) = 167 days

167 days = (23 weeks + 6 days) =6 odd days.

Total number of odd days = (0 + 1 + 3 + 6) = 3 odd days.

Given day is Wednesday.

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18 11418
Q:

Read the information carefully and answer the following questions

 

Six girls are sitting in a circle facing to the centre of the circle. They are Priya, Neha, Rashmi, Sonali, Tina and Veera. Tina is not between Neha and Sonali but some other one. Priya is next to the left of Veera. Rashmi is 4th to the Right of Priya.

 

Which one is sitting just right to Veera?

A) Priya B) Tina
C) Rashmi D) Sonali
 
Answer & Explanation Answer: B) Tina

Explanation:

Tina

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Q:

 On what dates of April, 2001 did Wednesday fall ?

A) 1st, 8th, 15th, 22nd, 29th B) 2nd, 9th, 16th, 23rd, 30th
C) 3rd, 10th, 17th, 24th D) 4th, 11th, 18th, 25th
 
Answer & Explanation Answer: D) 4th, 11th, 18th, 25th

Explanation:

ke

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10 11389
Q:

Pigeon:Peace::White flag:?

A) Surrender B) War
C) Victory D) friendship
 
Answer & Explanation Answer: A) Surrender

Explanation:

Pigeon is a symbol of peace and white flag is a symbol of surrender.

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Filed Under: Analogy
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