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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

Every month, Kritika spends 30% of her income on house rent and 60% of the rest on household expenditure. If she saves ₹ 6300 per month, what is her total monthly income?

A) ₹ 22,000 B) ₹ 20,500
C) ₹ 22,500 D) ₹ 25,000
 
Answer & Explanation Answer: C) ₹ 22,500

Explanation:

Let the monthly income be x
Kritika spends 30% of her income on house rent. The remaining amount will be 70% of x
Kritika spends 60% of the rest (70% of 60% = 42% of x )on household expenditure. The remaining amount will be 28% of x
If 28% of x is 6300 then 100% will be 22,500

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT

0 2049
Q:

If X = 600 and Y = 800, then X is how much percent less than Y?

A) 33.33 B) 25
C) 75 D) 35
 
Answer & Explanation Answer: B) 25

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

3 2047
Q:

Three friends J, K and L jog around a circular stadium and complete one round in 12, 18 and 20 seconds respectively. In how many minutes will all the three meet again at the starting point.

A) 5 B) 8
C) 12 D) 3
 
Answer & Explanation Answer: D) 3

Explanation:

All the three friends will meet at the starting point again after X seconds, such that X is the LCM of the times taken by J, K and L to complete one round.

=> LCM of 12, 18 and 20 = 180 seconds = 3 minutes.

Hence 3 minutes is the answer.

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Filed Under: HCF and LCM

1 2047
Q:

If (x + 1/x) = 3, then x8+1x8 is equal to

A) 2201 B) 2203
C) 2207 D) 2213
 
Answer & Explanation Answer: C) 2207

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

7 2046
Q:

(secA ­- tanA)/(cosecA + cotA) is equal to

A) (secA -­ cotA) / (cosecA + tanA) B) (secA -­ cosA) / (cosecA + sinA)
C) (cosecA -­ cotA) / (secA + tanA) D) (secA + cosA) / (cosecA -­ sinA)
 
Answer & Explanation Answer: C) (cosecA -­ cotA) / (secA + tanA)

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 2046
Q:

If 6A = 11B = 7C; find A : B : C

A) 66:42:77 B) 77:42:66
C) 42:77:66 D) 7:11:6
 
Answer & Explanation Answer: B) 77:42:66

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

3 2046
Q:

If Tan θ = 7/24, then what is the value of Sec θ?

A) 24/25 B) 24/7
C) 25/7 D) 25/24
 
Answer & Explanation Answer: D) 25/24

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

9 2045
Q:

If Rs 7,800 is to be divided between A, B and C in the ratio 1/2 : 1/3 : 1/4, then how much share will B get (in Rs)?

A) 3600 B) 1800
C) 2400 D) 1200
 
Answer & Explanation Answer: C) 2400

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

3 2043