Aptitude and Reasoning Questions

Q:

What is the value of [tan (90  A) + cot (90  A)]2/[2 sec2(90  2A)]?

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

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Q:

What is the value of Cot 60 - Sec 30?

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

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Q:

ΔABC is similar to ΔPQR. Length of AB is 18 cm and length of the corresponding side PQ is 12 cm. If area of ΔABC is 324 sq cm, what is the area of ΔPQR?

A) 72 sq cm B) 144 sq cm
C) 36 sq cm D) 487.5 sq cm
 
Answer & Explanation Answer: B) 144 sq cm

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Filed Under: Volume and Surface Area
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Q:

Choose the correct alternative from the given ones that will complete the below series. W/S, U/O, S/K, Q/G

A) P/R B) C/O
C) R/J D) O/C
 
Answer & Explanation Answer: D) O/C

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Q:

Rs. x invested at 9% simple interest per annum for 5 years yields the same interest as that on Rs. y invested at 6.25% simple interest per annum for 8 years. Find x:y.

 

 

A) 16:15   B) 10:9  
C) 45:50   D) 5:8
 
Answer & Explanation Answer: B) 10:9  

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Filed Under: Simple Interest
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Q:

If the zeroes of the polynomial x2 - ax + b are 3 and 4, then 'a' and 'b' are respectively equal to

A) 4, 3 B) 12, 7
C) 3, 4 D) 7, 12
 
Answer & Explanation Answer: D) 7, 12

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Q:

If XY = a+23 and YX = 13, then find the value of X2 + Y2X2 - Y2.

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

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Q:

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

 

A) (2, 22, 222) B) (3, 33, 333)
C) (1, 11, 111) D) (4, 44, 4444)
 
Answer & Explanation Answer: D) (4, 44, 4444)

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Filed Under: Odd Man Out
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