Aptitude and Reasoning Questions

Q:

If √(1+tan2A) = x, then the value of x is

A) sinA B) cosecA
C) secA D) cosA
 
Answer & Explanation Answer: C) secA

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Q:

ΔPQR is right angled at Q. If cosP = 5/13, then what is the value of cosecR ?

A) 13/5 B) 5/12
C) 5/13 D) 13/12
 
Answer & Explanation Answer: A) 13/5

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Q:

In a class of 56 students there are 28 girls. The average weight of these girls is 46 kg and average weight of the full class is 51 kgs. What is the average weight of the boys of the class?

A) 55 B) 56
C) 53 D) 54
 
Answer & Explanation Answer: B) 56

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Q:

If α and β are the roots of the equation x2+ x  1 = 0, then what is the equation whose roots are α5 and β5?

A) x2 + 7x – 1 = 0 B) x2 – 7x – 1 = 0
C) x2 – 11x – 1 = 0 D) x2 + 11x – 1 = 0
 
Answer & Explanation Answer: D) x2 + 11x – 1 = 0

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Q:

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

XX, XOX, XXXX, XXOXX, XXXXXX, ?

A) XXXOXXXX B) XXXOXXX
C) XXXXXXX D) XXXOXXXO
 
Answer & Explanation Answer: B) XXXOXXX

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Q:

If 7x - [3(2x - 3)]/2 = 1/2, then what is the value of x?

A) -1 B) 1
C) 3 D) -3
 
Answer & Explanation Answer: A) -1

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Q:

In this question, some equations are solved on the basis of a certain system. On the same basis find out the correct answer from amongst the four alternatives for the unsolved equation.

53 ­ 34 = 5334
65 ­ 46 = 6456
75 ­ 24 = ?

A) 7542 B) 7524
C) 7452 D) 7254
 
Answer & Explanation Answer: D) 7254

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Q:

When 0.151515.....is converted into a fraction, then the result is

A) 5/33 B) 17/33
C) 9/11 D) 7/33
 
Answer & Explanation Answer: A) 5/33

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