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Question 1 of 10

1. Question

1 points

Category: Quantitative Aptitude

An article is marked 20% above the cost price and with this a discount of 20% is also allowed on the article. If the selling price of the article is Rs 120, how much is the loss in the article?

Correct

Explanation:
SP = 120, discount is 20%, this means MP = (100/80)*120 = 150
MP is 20% above CP, so CP is (100/120)*150 = 125
So the loss is 125-120

Incorrect

Explanation:
SP = 120, discount is 20%, this means MP = (100/80)*120 = 150
MP is 20% above CP, so CP is (100/120)*150 = 125
So the loss is 125-120

A and B invested money in the ratio 4 : 5 in a business. They decided to give 10% of the total profit to charity. What is the total profit if B got Rs 2500 as his share?

Correct

Explanation:
Let x be profit, then (90/100)*x is divided among A and B in the ratio 4 : 5
So 5/9 * (90/100)*x = 2500
Solve, x = 5000

Incorrect

Explanation:
Let x be profit, then (90/100)*x is divided among A and B in the ratio 4 : 5
So 5/9 * (90/100)*x = 2500
Solve, x = 5000

Question 4 of 10

4. Question

1 points

Category: Quantitative Aptitude

The ratio of the present ages of A and B is in the ratio 3 : 5. The ratio of A’s age 4 years ago and B’s age 2 years ago is 5 : 9. What is the age of A after 6 years?

Correct

Explanation:
3x and 5x
So (3x-4)/(5x-2) = 5/9
Solve, x = 13
So A’s present age = 3*13 = 39
After 6 years = 39+6

Incorrect

Explanation:
3x and 5x
So (3x-4)/(5x-2) = 5/9
Solve, x = 13
So A’s present age = 3*13 = 39
After 6 years = 39+6

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

An amount of 4340 is obtained after 3 years on an investment of Rs 3500. What amount would have been retrieved if the rate of interest was 2% more?

Correct

Explanation:
Extra interest with 2% increased rate = 3500*2*3/100 = 210
So amount with 2% more interest = 4340+210

Incorrect

Explanation:
Extra interest with 2% increased rate = 3500*2*3/100 = 210
So amount with 2% more interest = 4340+210

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

The greatest number which on dividing 1565 and 1443 leaves remainders 5 and 3 respectively is

Correct

Explanation:
HCF of (1565-5) and (1443-3)
HCF of 1560 and 1440

Incorrect

Explanation:
HCF of (1565-5) and (1443-3)
HCF of 1560 and 1440

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

10 men and 15 women can complete a work in 7 days. The same work can be completed by 11 men and 8 women in 10 days. What is the ratio of the daily work done by a man to that of a woman?

Correct

Explanation:
10m + 15w = 7
So 70m + 105w = 1
Also 11m + 8w = 10
So 110m + 80w = 1
So 70m + 105w = 110m + 80w
Solve, m/w = 5/8

Incorrect

Explanation:
10m + 15w = 7
So 70m + 105w = 1
Also 11m + 8w = 10
So 110m + 80w = 1
So 70m + 105w = 110m + 80w
Solve, m/w = 5/8

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

Two varieties of wheat costing Rs 20 and Rs 32 are mixed in the ratio 1 : 2. What is the selling price of mixture if it is sold at 10% profit?

Correct

Explanation:
20…………..……………32
………………x
32-x……………………x-20
So (32-x)/(x-20) = 1/2
Solve, x = 28
So SP = (110/100)*28

Incorrect

Explanation:
20…………..……………32
………………x
32-x……………………x-20
So (32-x)/(x-20) = 1/2
Solve, x = 28
So SP = (110/100)*28

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

The length and the breadth of a rectangular room are 315 cm and 225 cm. A carpet is to be placed on the floor of the room leaving 2.5 cm space from the walls. What is the cost of carpet at Rs 1200 per metre square?

Correct

Explanation:
leaving 2.5 cm space means 5 cm from length and breadth
Area of carpet = (315-5)*(225-5) = 68200 cm sq. = 6.82 m sq.
So cost = 6.82*1200

Incorrect

Explanation:
leaving 2.5 cm space means 5 cm from length and breadth
Area of carpet = (315-5)*(225-5) = 68200 cm sq. = 6.82 m sq.
So cost = 6.82*1200

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

An amount of 750 is to be divided among A, B and C. If Rs 30 is added to the shares of all, the ratio of their shares become 8 : 11 : 9.The money received by A is

Correct

Explanation:
(8x-30) + (11x-30) + (9x-30) = 750
Solve, x = 30
So A got 8x-30 = 8*30 – 30 = 240-30

Incorrect

Explanation:
(8x-30) + (11x-30) + (9x-30) = 750
Solve, x = 30
So A got 8x-30 = 8*30 – 30 = 240-30