Quantitative Aptitude - Arithmetic Ability Questions

Q:

The true discount on Rs.2562 due 4 months hence is Rs.122.The rate % is?

A) 12% B) 13 (1/3)%
C) 15% D) 14%
 
Answer & Explanation Answer: A) 12%

Explanation:

P.W = Rs.( 2562 - 122) = Rs.2440 

S.I on Rs.2440 for 4 months is Rs.122 

Rate = (100 x 122)/(2440 x [1/3]) % = 15%

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Filed Under: True Discount

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Q:

70000 a year is how much an hour?

A) 80 B) 8
C) 0.8 D) 0.08
 
Answer & Explanation Answer: B) 8

Explanation:

Given for year = 70000

=> 365 days = 70000

=> 365 x 24 hours = 70000

=>   1 hour = ?

70000/365x24 = 7.990 = 8

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Q:

8 litres are drawn from a flask containing milk and then filledwith water. The operation is performed 3 more times. Theratio of the quantity of milk left and total solution is 81/625.How much milk the flask initially holds?

A) 10 ltr B) 20 ltr
C) 30 ltr D) 40 ltr
 
Answer & Explanation Answer: B) 20 ltr

Explanation:

Let initial quantity be Q, and final quantity be F

F = Q(1 - 8/Q)4

=> Q = 20

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Filed Under: Alligation or Mixture

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Q:

7 hrs after a goods train passed a station, another train travelling at a speed of 54 km/hr following that goods train passed through that station. If after passing the station the train overtakes the goods train in 11 hours. What is the speed of the goods train?

A) 39.6 km/hr B) 49.5 km/hr
C) 33 km/hr D) 26.4 km/hr
 
Answer & Explanation Answer: C) 33 km/hr

Explanation:
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Filed Under: Problems on Trains

3 2988
Q:

If a person repaid Rs. 22500 after 10 years of borrowing a loan, at 10% per annum simple interest find out what amount did he take as a loan?

A) 11,225 B) 11,250
C) 10,000 D) 7,500
 
Answer & Explanation Answer: B) 11,250

Explanation:

SI = PTR/100

SI = PX100/100

SI = P

So, Amount=P+SI=2P→22500 = 2P→P = 11250

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

3/4 divided by 2 is

A) 3/2 B) 2/3
C) 8/3 D) 3/8
 
Answer & Explanation Answer: D) 3/8

Explanation:

3/4 divided by 2

= 3/4/2

= 3/4x2

= 3/8.

 

Hence, 3/4 divided by 2 is equal to 3/8.

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Q:

When I was 24, my mother was twice my age. Now I am 44, how old is my mother?

A) 84 B) 48
C) 68 D) 88
 
Answer & Explanation Answer: C) 68

Explanation:

From the given data,

when my age is 24, my mothers age is double of my age 

=> 48 yrs is my mothers age

=> Difference is 48 - 24 = 24 years.

 

When my age is 44

=> My mother is 44 + 24 = 68 years aged.

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

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Q:

Area of the circle inscribed in a square of diagonal 6√2 cm (in sq cm) is

A) 9 Π B) 6 Π
C) 3 Π D) 9√2 Π
 
Answer & Explanation Answer: A) 9 Π

Explanation:
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Filed Under: Area
Exam Prep: AIEEE , Bank Exams

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