Quantitative Aptitude - Arithmetic Ability Questions

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:

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

A) 20 B) 50
C) 25 D) 30
 
Answer & Explanation Answer: D) 30

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Filed Under: Problems on Numbers
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Q:

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

A) Arithmetic B) Mathematics
C) Geometry D) Algebra
 
Answer & Explanation Answer: B) Mathematics

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Filed Under: Odd Man Out
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Q:

Select the odd number from the given alternatives.

A) 49 B) 25
C) 8 D) 36
 
Answer & Explanation Answer: C) 8

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Filed Under: Odd Man Out
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Q:

When a number is increased by 26, it becomes 113% of itself. What is the number?

A) 200 B) 312
C) 390 D) 234
 
Answer & Explanation Answer: A) 200

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Filed Under: Percentage
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Q:

Find the LCM of 12, 16, 20 and 24.

A) 180 B) 220
C) 240 D) 260
 
Answer & Explanation Answer: C) 240

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Filed Under: HCF and LCM
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Q:

The angles of elevation of top and bottom of a flag kept on a flag post from 30 metres distance, are 45 and 30 deg respectively. Height of the flag is [taking √3 = 1.732]

A) 12 √3 m B) 15 m
C) 14.32 m D) 12.68 m
 
Answer & Explanation Answer: D) 12.68 m

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Filed Under: Height and Distance
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Q:

A balloon leaves from a point P rises at a uniform speed. After 6 minutes, an observer situated at a distance of 450√3 metres from point P observes that angle of elevation of the balloon is 60 deg. Assume that point of observation and point P are on the same level. What is the speed (in m/s) of the balloon?

A) 4.25 B) 3.75
C) 4.5 D) 3.45
 
Answer & Explanation Answer: B) 3.75

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Filed Under: Height and Distance
Exam Prep: Bank Exams

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