Quantitative Aptitude - Arithmetic Ability Questions

Q:

A box contains 5 green, 4 yellow and 3 white marbles. Threemarbles are drawn at random. What is the probability thatthey are not of the same colour ?

A) 40/44 B) 44/41
C) 41/44 D) 40/39
 
Answer & Explanation Answer: C) 41/44

Explanation:

n(E) = 5C3 + 4C3 + 3C3 = 10 + 4 + 1 = 15n(S) = 12C3 = 220

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Filed Under: Permutations and Combinations
Exam Prep: Bank Exams

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Q:

What smallest number should be added to 2401 so that the sum is completely divisible by 14 ?

A) 8 B) 7
C) 4 D) 5
 
Answer & Explanation Answer: B) 7

Explanation:
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Q:

In Δ ABC, the median AD is 7 cm and CB is 14 cm, measure of ∠CAB is

A) 30° B) 60°
C) 90° D) 120°
 
Answer & Explanation Answer: C) 90°

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

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Q:

If on a Sale there is 40% discount on the marked price of Rs 1000, but the sale is done at Rs 510 only then what additional discount (in %) did the customer get?

A) 25 B) 15
C) 10 D) 30
 
Answer & Explanation Answer: B) 15

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

In how many different ways can the letters of the word 'THERAPY' be arranged so that the vowels always come together?

A) 720 B) 1440
C) 1800 D) 3600
 
Answer & Explanation Answer: B) 1440

Explanation:

Given word is THERAPY.

Number of letters in the given word = 7

Number of vowels in the given word = 2 = A & E

Required number of different ways, the letters of the word THERAPY arranged such that vowels always come together is

6! x 2! = 720 x 2 = 1440.

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Filed Under: Permutations and Combinations
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Q:

A man travels 404 kilometres in partly by rail and steamer. He spends 10 hours more time on steamer. If the speed of the steamer is 30 km/hr and the velocity of rail is 50 km/hr, how much distance does he cover by steamer?

A) 407 km B) 509 km
C) 610 km D) 339 km
 
Answer & Explanation Answer: D) 339 km

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

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Q:

A passenger train running at the speed of 80 kms/hr leaves the railway station 6 hours after a goods train leaves and overtakes it in 4 hours. What is the speed of the goods train?

A) 32 kms/hr B) 50 kms/hr
C) 45 kms/hr D) 64 kms/hr
 
Answer & Explanation Answer: A) 32 kms/hr

Explanation:
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Filed Under: Problems on Trains

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Q:

A dealer sold an article at 6% loss. Had he sold it for Rs. 64 more, he would have made a profit of 10%. Then the cost of the article is

A) Rs.400 B) Rs.200
C) Rs.164 D) Rs.464
 
Answer & Explanation Answer: A) Rs.400

Explanation:
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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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