Aptitude and Reasoning Questions

Q:

In ΔDEF measure of angle E is 90 deg. If cotD = 8/15, and DE = 16cm, then what is the length (in cm) of side EF?

 

 

A) 34   B) 15  
C) 30   D) 14
 
Answer & Explanation Answer: C) 30  

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Filed Under: Area
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Q:

38% of 250 is equal to

A) 95 B) 114
C) 76 D) 104.5
 
Answer & Explanation Answer: A) 95

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Filed Under: Percentage
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Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) Border Security Force B) Central Reserve Police Force
C) Indo­Tibetan Border Police Force D) Indian Air Force
 
Answer & Explanation Answer: D) Indian Air Force

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Q:

Coefficient of x2  in (x + 7)(5 - 3x)(3x - 6) is

A) 96 B) -30
C) 42 D) -18
 
Answer & Explanation Answer: B) -30

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Filed Under: Simplification
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Q:

A thief is stopped by a policeman from a distance of 350 metres. When the policeman starts the chase, the thief also starts running. Assuming the speed of the thief as 7 km/h and that of police man as 12 km/h, how far the thief would have run, before he is over taken?

A) 490 metres B) 392 metres
C) 588 metres D) 294 metres
 
Answer & Explanation Answer: A) 490 metres

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Filed Under: Time and Distance
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Q:

The ratio of curved surface area of a right circular cylinder to the total area of its two bases is 2 : 1. If the total surface area of cylinder is 23100 cm2, then what is the volume (in cm3) of cylinder?

A) 247200 B) 269500
C) 312500 D) 341800
 
Answer & Explanation Answer: B) 269500

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Filed Under: Volume and Surface Area
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Q:

ΔGHI is similar to ΔKLM. If the ratio of Perimeter of Δ GHI : Perimeter of ΔKLM = 1:4, and length of GH is 2 cm, what is the length of the corresponding side KL?

A) 4 cm B) 8 cm
C) 32 cm D) 16 cm
 
Answer & Explanation Answer: B) 8 cm

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Q:

Thousand solid metallic spheres of diameter 6 cm are melted and recast into a new solid sphere. The diameter of the new sphere (in cm) is

A) 30 B) 90
C) 45 D) 60
 
Answer & Explanation Answer: D) 60

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Filed Under: Volume and Surface Area
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