6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A dealer sells two machines at Rs 12000 each. On one it gains 32% and on the other it looses 32%. What is its profit/loss percentage in the whole transaction?

A) No gain and no loss	B) 1% loss
C) 18% profit	D) 10.24% loss

Answer & Explanation Answer: D) 10.24% loss

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

3 4098

Q:

A woman suffered 20% loss on first investment and made 10% profit at second investment and 12 ½% profit on the third investment. If the invested amount be in the ratio of 4 : 5 : 3, find her profit percentage?

A) 0.625%	B) 1.205%
C) 0.987%	D) 0%

Answer & Explanation Answer: A) 0.625%

Explanation:

From the given data,

let the amounts invested be 4p, 5p and 3p

Net profit = Total profit - Total loss

= 10x5p/100 + 25x3p/200 - 20x4p/100

= 0.875p - 0.8p

= 0.075p

Therefore, profit% = (Net profit/Total investment) x 100

= 0.075 x 100/12

= 0.0625%

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Filed Under: Percentage
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9 4097

Q:

Simplify $4 \frac{1}{3} + 2 \frac{1}{5} + 4 \frac{1}{4} = ?$

A) 10 47/60	B) 11 45/73
C) 11 47/36	D) 10 35/48

Answer & Explanation Answer: A) 10 47/60

Explanation:

The given equation is in Mixed fraction.

Now to solve this type of fractions,

$4 \frac{1}{3} + 2 \frac{1}{5} + 4 \frac{1}{4} = ? ? = (4 + 2 + 4) + (\frac{1}{3} + \frac{1}{5} + \frac{1}{4}) ? = 10 + \frac{47}{60} ? = 10 \frac{47}{60}$

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Filed Under: Simplification
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9 4096

Q:

A and B invest in a business in the ratio 4 : 5. After 10 months B leaves the business after withdrawing his investment. In the first year the business made a profit of Rs 49,000. What is B's share (in Rs) of this profit?

A) 25000	B) 20000
C) 18000	D) 22000

Answer & Explanation Answer: A) 25000

Explanation:

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Filed Under: Partnership
Exam Prep: Bank Exams

3 4095

Q:

15 semiannual payments are made into a sinking fund at 7% compounded semiannually so that $4850 will be present. Find the amount of each payment rounded to the nearest cent

A) 251.35	B) 245.45
C) 235.87	D) 251

Answer & Explanation Answer: A) 251.35

Explanation:

R=S[i/(1+i)^n-1]

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Filed Under: Compound Interest
Exam Prep: Bank Exams
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0 4084

Q:

The length of a rectangular plot is 20 metres more than its breadth. If the cost of fencing the plot @ 26.50 per metre is Rs. 5300, what is the length of the plot in metres?

A) 40	B) 120
C) 50	D) None of these

Answer & Explanation Answer: D) None of these

Explanation:

Let breadth = x metres.

Then, length = (x + 20) metres.

Perimeter = 5300 m = 200 m. 26.50

2[(x + 20) + x] = 200

2x + 20 = 100

2x = 80

x = 40.

Hence, length = x + 20 = 60 m.

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Filed Under: Volume and Surface Area

1 4082

Q:

A decision committee of 5 members is to be formed out of 4 Actors, 3 Directors and 2 Producers. In how many ways a committee of 2 Actors, 2 Directors and 1 Producer can be formed ?

A) 18	B) 24
C) 36	D) 32

Answer & Explanation Answer: C) 36

Explanation:

Required Number of ways = $4 C_{2} \times 3 C_{2} \times 2 C_{1} = 36$ = 36

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Filed Under: Permutations and Combinations
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17 4075

Q:

The difference between simple interest and compound interest of a certain sum of money at 20% per annum for 2 years is Rs. 56. Then the sum is :

A) Rs. 3680	B) Rs. 2650
C) Rs. 1400	D) Rs. 1170

Answer & Explanation Answer: C) Rs. 1400

Explanation:

We know thatThe Difference between Compound Interest and Simple Interest for n years at R rate of interest is given by $C . I_{n} - S . I_{n} = P {[\frac{R}{100}]}^{n}$

Here n = 2 years, R = 20%, C.I - S.I = 56

$56 = P {[\frac{20}{100}]}^{2} = > P = 56 x {(5)}^{2} = > P = 56 x 25 = > P = Rs . 1400$

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Filed Under: Compound Interest
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28 4075

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