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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

What least number must be added to 1039, so that the sum obtained is completely divisible by 29?

A) 4 B) 5
C) 8 D) 6
 
Answer & Explanation Answer: B) 5

Explanation:
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Filed Under: Problems on Numbers

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Q:

What is the percentage decrease in the area of a triangle if its each side is halved?

A) 75% B) 50%
C) 25% D) No change
 
Answer & Explanation Answer: A) 75%

Explanation:
Area of triangle of = ½*a*b* sinθ = A
Where a and b are sides of the triangle and θ be the angle between them
After decreasing each side
New area = ½*(a/2)*(b/2)*sinθ = ¼ A
%decrease = [(A–¼ A)/A ]*100 = 75%
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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

1 2937
Q:

If cosecA + cotA = x, then value of x is

A) 1/(cosecA - cotA) B) 1/(secA - tanA)
C) 1/(secA - cosA) D) 1/(sinA - cosA)
 
Answer & Explanation Answer: A) 1/(cosecA - cotA)

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2934
Q:

A man has 3 sons, 2 daughters and a wife. They divided a sum of Rs 19000 among themselves such that each daughter got 1.5 times the amount received by each son and his wife received 600 less than each son. What is the total amount (in Rs) received by the 3 sons together?

A) 2800 B) 3600
C) 5600 D) 8400
 
Answer & Explanation Answer: D) 8400

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Filed Under: Partnership
Exam Prep: Bank Exams

1 2933
Q:

A villager buys a goat and a sheep together for Rs 14,250. He sold the sheep at a profit of 10% and the goat at a loss of 20%. If he sold both the animals at the same price , then what was the cost price of the cheaper animal?

A) 8250 B) 6600
C) 7500 D) 6000
 
Answer & Explanation Answer: D) 6000

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

4 2933
Q:

A person driving at the speed of 45 kmph reaches office 1 minute early while she reaches 3 minutes late if driving 40 kmoh. What is the distance (in Km) that she is covering?

 

A) 24 B) 28
C) 32 D) 30
 
Answer & Explanation Answer: D) 30

Explanation:

Difference in time taken = 4min = 1/15 hr

Let the total distance covered by person be D km.

Then,

⇒ D/40 – D/45 = 1/15

⇒ 5D = 120

⇒ D = 24 km

∴ Distance covered by person is 24 km.

 

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Filed Under: Time and Distance
Exam Prep: Bank Exams

6 2931
Q:

If a=101 then the value of a(a2-3a+3) is 

A) 1000000 B) 1010101
C) 1000001 D) 999999
 
Answer & Explanation Answer: C) 1000001

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

20% of 120?

A) 20 B) 24
C) 32 D) 36
 
Answer & Explanation Answer: B) 24

Explanation:

20% of 120

20 x 120/100

= 4 x 6

= 24

 

Hence, 20% of 120 = 24.

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

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