Quantitative Aptitude - Arithmetic Ability Questions

Q:

In an army selection process, the ratio of selected to unselected was 5:1. If 100 less had applied and 20 less selected, the ratio of selected to unselected would have been 6:1. How many candidates had applied for the process?

A) 5520 B) 2760
C) 1380 D) 8280
 
Answer & Explanation Answer: B) 2760

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Filed Under: Ratios and Proportions
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Q:

If (1 - sinA)/(1 + sinA) = x, then x is

A) (cosecA - cotA)2 B) secA - tanA
C) (secA - tanA)2 D) cosecA - cotA
 
Answer & Explanation Answer: C) (secA - tanA)2

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Q:

Find out the odd word/letters/number/number pair from the given alternatives.

A) TP B) DH
C) WS D) RN
 
Answer & Explanation Answer: B) DH

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Filed Under: Odd Man Out
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Q:

Select the odd letters from the given alternatives.

A) DFH B) KMO
C) QTW D) SUW
 
Answer & Explanation Answer: C) QTW

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Q:

Points P and Q lie on side AB and AC of triangle ABC respectively such that segment PQ is parallel to side BC. If the ratio of areas of triangle APQ: triangle ABC is 16:25. Then the ratio of AP:PB is?

A) 4:5 B) 1:4
C) 5:1 D) 4:1
 
Answer & Explanation Answer: D) 4:1

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Q:

If √(1 + cot2A)/cotA = 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:

What is the simplified value of (sin A – cosec A)(sec A – cos A) (tan A + cot A)?

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

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Q:

If cos 27° = x, the value of tan 63° is

A) x1-x2 B) x1+x2
C) 1-x2x D) 1+x2x
 
Answer & Explanation Answer: A) x1-x2

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