Quantitative Aptitude - Arithmetic Ability Questions

Q:

Simplify : 69 X 69 X 69 -65 X 65 X 669 X 69 + 69 X 65 + 65 X 65

A) 1 B) 4
C) 0.216 D) 0.164
 
Answer & Explanation Answer: B) 4

Explanation:

69 –65 = 4

69
65 = 4
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Filed Under: Simplification
Exam Prep: Bank Exams

0 2502
Q:

(91 + 92 + 93 + ......... +110) is equal to

A) 4020 B) 2010
C) 6030 D) 8040
 
Answer & Explanation Answer: B) 2010

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

5 2501
Q:

Rajesh sells a machine for Rs 57 lakhs at a loss. Had he sold it for Rs 67 lakh, his gain would have been 7 times the former loss. Find the cost price of the machine.

A) Rs 58.25 lakhs B) Rs 65.75 lakhs
C) Rs 75.14 lakhs D) Rs 50.75 lakhs
 
Answer & Explanation Answer: A) Rs 58.25 lakhs

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

2 2501
Q:

If a saree is sold for Rs 1900 the seller will face 5% loss, at what price (in Rs) should he sell the saree to gain 15% profit?

A) 2200 B) 2400
C) 2500 D) 2300
 
Answer & Explanation Answer: D) 2300

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

0 2500
Q:

0.0245¯ written as a vulgar fraction in its simplest form = ?

A) 9/370 B) 27/1111
C) 27/1100 D) 9/37
 
Answer & Explanation Answer: C) 27/1100

Explanation:
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Filed Under: Decimal Fractions
Exam Prep: Bank Exams

3 2500
Q:

A uniformly moving train of length 480 m takes 3 minutes to completely cross a platform. If the same train, with the same speed crosses a pole completely in 30 sec, then the length of the platform is -

A) 1 km B) 600 m
C) 4.8 km D) 1.2 km
 
Answer & Explanation Answer:

Explanation:

Let length of platform be ‘y’metres.

Then, at the platform,Distance travelled = y + (length of train) = (y + 480)m

Then, Speed of train = (y + 480)m / (3x60) sec = (y+480)/180 ...(1)

Also, at the pole,Distance travelled = length of train = 480m

Then, Speed of train = 480m / 30sec = 16 m/s ...(2)

Equating eq.(1) & eq.(2), we get,

(y+480)/180 = 16(y+480) = 16 x 180 = 2880

y = 2880 –480 = 2400m or 2.4 km long platform.

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Filed Under: Problems on Trains
Exam Prep: Bank Exams
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2 2499
Q:

Surbhi invested Rs.6000 for 5 months and Urba invested Rs.5000 for 6 months in a venture. The ratio in which they will share the profits is

A) 36:25 B) 6:5
C) 5:6 D) 1:1
 
Answer & Explanation Answer: D) 1:1

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

2/3 of a milk-water mixture was milk. There was 21 lit of the mixture. If 4 lit of water is added to it, the % of milk in the new mixture will be:

A) 56 B) 11
C) 44 D) 14
 
Answer & Explanation Answer: A) 56

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

16 2498