6500+ Quantitative Aptitude Questions and Answers With Explanation

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

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Q:

If $\tan^{2} A - \sin^{2} A = x$ , then value of x is

A) tan2A sin2A	B) cot2A cosec2A
C) tanA sinA	D) cotA cosecA

Answer & Explanation Answer: A) tan2A sin2A

Explanation:

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Filed Under: Simplification
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Q:

$\cos^{3} A$ is equal to

A) cos3A - 3sin2cosA	B) cos3A + 4sin2cosA
C) cos3A + 3sin2cosA	D) cos3A - 4sin2cosA

Answer & Explanation Answer: C) cos3A + 3sin2cosA

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

The entry ticket at a fun park was increased in the ratio 7 : 9, due to which footfalls fell in the ratio 13 : 11. What is the new daily collection (in Rs), if the daily collection before the price hike was Rs 2,27,500?

A) 237500	B) 247500
C) 232500	D) 242500

Answer & Explanation Answer: B) 247500

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

If a watch is being sold at Rs 7,225 which is marked at Rs 8,500, then what is the discount (in %) at which the watch is being sold?

A) 24	B) 15
C) 25	D) 20

Answer & Explanation Answer: B) 15

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

A bag contains 25 paise, 50 paise and 1 Rs coins. There are 220 coinsinall and the total amount in the bag is Rs. 160. If there arethrice as many 1 Rs. coins as there are 25 paise coins, then what is the number of 50 paise coins?

A) 60	B) 40
C) 120	D) 80

Answer & Explanation Answer: A) 60

Explanation:

Let there be x one rupee coin, y 50 paise coin, z 25 paise coinx + y + z = 220......(i)

Total amount = 160

Now, x + (y/2) + z = 160 ......(ii)

⇒4x + 2y + z = 640

Thrice as many 1 re coin as 25 paise

⇒x = 3z ......(iii)

On solving equation (i), (ii) and (iii), we get

z = 40x= 3* 40 = 120y = 220 –(120 + 40 ) = 60

So, 50 paise coin =60

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Q:

M is thrice as good as workman as N and together they finish a piece of work in 30 days. In how many days will M alone finish the work?

A) 50	B) 40
C) 60	D) 45

Answer & Explanation Answer: B) 40

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Filed Under: Time and Work
Exam Prep: Bank Exams

1 2382

Q:

If A : B = 2 : 5, B : C = 4 : 3 and C : D = 2 : 1, then what is value of A : C : D?

A) 6 : 5 : 2	B) 7 : 20 : 10
C) 8 : 30 : 15	D) 16 : 30 : 15

Quantitative Aptitude - Arithmetic Ability Questions

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