Quantitative Aptitude - Arithmetic Ability Questions

Q:

If tan x = 1, 0 < x < 90, then what is the value of 2 sin x cos x?

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

Explanation:

tan x = 1

then x = 45

2sin x. cos x = 2× 1/√2 x 1/√2 = 1

an x = 1
then
x = 45
o
2sin x. cos x =
2
×
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Filed Under: Simplification
Exam Prep: Bank Exams

1 2084
Q:

If 4/5th of 6/7th of a number is 216, then 8/9th of that number will be

A) 179 B) 280
C) 160 D) 149
 
Answer & Explanation Answer: B) 280

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

2 2084
Q:

If 2x + 2(4 + 3x) < 2 + 3x > 2x + x/2; then x can take which of the following values?

A) -3 B) 1
C) 0 D) -1
 
Answer & Explanation Answer: A) -3

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A car moving in the morning fog passes a man walking at 4km/h. in the same direction. The man can see the car for 3 minutes and visibility is upto a distance of 130m. The speed of the car is :

A) 10 kmph B) 7.5 kmph
C) 8.9 kmph D) 6.6 kmph
 
Answer & Explanation Answer: D) 6.6 kmph

Explanation:
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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

Of the 5 numbers whose average is 78, the first is 2/11 times the sum of other 4. The first number is

A) 90 B) 40
C) 60 D) 120
 
Answer & Explanation Answer: C) 60

Explanation:
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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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Q:

Average of two numbers is 8 and average of other three numbers is 3 ; the average of the five numbers is

A) 2 B) 3
C) 5 D) 6
 
Answer & Explanation Answer: C) 5

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

The average marks of 56 students is shown as 60. It includes a wrong entry of 92 marks instead of 29 marks. The correct average is _____ .

A) 58.875 marks B) 61.125 marks
C) 63.375 marks D) 56.625 marks
 
Answer & Explanation Answer: A) 58.875 marks

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

The marked price is 10% higher than the cost price . A discount of 10% is given to the marked price . In this kind of sale the seller

A) bears no gain , no loss B) gains
C) loses 1% D) None of these
 
Answer & Explanation Answer: C) loses 1%

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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