Quantitative Aptitude - Arithmetic Ability Questions

Q:

A train 110 metres long is running with a speed of 60 kmph . In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going ?

A) 5 sec B) 6 sec
C) 7 sec D) 10 sec
 
Answer & Explanation Answer: B) 6 sec

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Filed Under: Problems on Trains
Exam Prep: Bank Exams

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Q:

If a+1a=2 then the vealue of a5+1a5 will be

A) 0 B) 1
C) 3 D) 2
 
Answer & Explanation Answer: B) 1

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Filed Under: Average

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Q:

The mean of 10 observations is 17. One more observation is included and the new mean becomes 16. The 11th observation is

 

A) 16 B) 8
C) 6 D) 12
 
Answer & Explanation Answer: C) 6

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Q:

In ΔPQR, ∠R = 54°, the perpendicular bisector of PQ at S meets QR at T. If ∠TPR = 46°, then what is the value (in degrees) of ∠PQR?

A) 25 B) 40
C) 50 D) 60
 
Answer & Explanation Answer: B) 40

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Q:

α and β are the roots of the quadratic equation x2  x  1 = 0. What is the value of α8 + β8?

A) 47 B) 54
C) 59 D) 68
 
Answer & Explanation Answer: A) 47

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Q:

If x2  4x + 1 = 0, then what is the value of x9 + x7  194x5  194x3?

A) 4 B) – 4
C) 1 D) – 1
 
Answer & Explanation Answer: B) – 4

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Filed Under: Simplification
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Q:

The measures of the four angles of a quadilateral are in the ratio 3:4:5:6. What is the measure of the biggest angle?

A) 120° B) 100°
C) 80° D) 60°
 
Answer & Explanation Answer: A) 120°

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Filed Under: Area
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Q:

The area of a circle is 346.5 cm². Find its radius (in cm).

A) 10.5 B) 21
C) 7.5 D) 15
 
Answer & Explanation Answer: A) 10.5

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Filed Under: Area
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