Percentage Worksheet-7

Percentage Worksheet-7

1. The quantity of water (in ml) needed to reduce 9 ml shaving lotion containing 50% alcohol to a lotion containing 30% alcohol, is:

(a) 4                    (b) 5                    (c) 6                    (d) 7

2. To a sugar solution of 3 litres containing 40% sugar, one litre of water is added. The percentage of sugar in the new solution is:

(a)           (b) 15%               (c) 30%              (d) 33%

3. One type of liquid contains 20% water and the second type of liquid contains 35% of water. A glass is filled with 10 parts of first liquid and 4 parts of second liquid. The percentage of water in the new mixture in the glass is:

(a) 20%              (b)                    (c) 37%               (d) 40%

4. In some quantity of ghee, 60% is pure ghee and 40% is vanaspati. If 10 kg of pure ghee is added, then the strength of vanaspati ghee becomes 20%. The original quantity was:

(a) 10 kg             (b) 15 kg             (c) 20 kg            (d) 25 kg

5. The weight of the container alone is 25% of the container filled with a certain fluid. When some fluid is removed, the weight of the container and remaining fluid is 50% of the original total weight. What fractional part of the liquid has been removed?

(a)                    (b)                   (c)                    (d)

6. From a container having pure milk, 20% is replaced by water and the process is repeated thrice. At the end of the third operation, the milk is:

(a) 40% pure    (b) 50% pure    (c) 51.2% pure  (d) 58.8% pure

7. An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank?

(a) 33.5%           (b) 37.5%           (c) 40%              (d) 50%

8. A bag contains 600 coins of 25 p denomination and 1200 coins of 50 p denomination. If 12% of 25 p coins and 24% of 50 p coins are removed, the percentage of money removed from the bag is nearly:

(a) 15.6%           (b) 17.8%           (c) 21.6%           (d) 30%

9. The price of rice is reduced by 2%. How many kilograms of rice can now be bought for the money which was sufficient to buy 49 kg of rice earlier?

(a) 48 kg            (b) 49 kg            (c) 50 kg            (d) 51 kg

10. A reduction of 21% in the price of wheat enables a person to buy 10.5 kg more for Rs. 100. What is the reduced price per kg?

(a) Rs. 2             (b) Rs. 2.25       (c) Rs. 2.30       (d) Rs. 2.50

11. Due to an increase of 30% in the price of eggs, 3 eggs less are available for Rs. 7.80. The present rate of eggs per dozen is:

(a) Rs. 8.64       (b) Rs. 8.88      (c) Rs. 9.36       (d) Rs. 10.40

12. The price of sugar having gone down by 10%, Sharad can buy 6.2 kg more for Rs. 279. The difference between the original and the reduced price (per kg) is:

(a) Rs. 0.50       (b) Rs. 1             (c) Rs. 1.50        (d) Rs. 4.50

13. In an examination, 34% of the students failed in Mathematics and 42% failed in English. If 20% of the students failed in both the subjects, then the percentage of students who passed in both the subjects was:

(a) 44                  (b) 50                 (c) 54                  (d) 56

14. 40% of the people read newspaper X, 50% read newspaper Y and 10% read both the papers. What percentage of the people read neither newspaper?

(a) 10%               (b) 15%               (c) 20%              (d) 25%

15. Out of 450 students of a school, 325 play football, 175 play cricket and 50 neither play football nor cricket. How many students play both football and cricket?

(a) 50                  (b) 75                  (c) 100                (d) 225

Answer Key:

(1)-c; (2)-c; (3)-b; (4)-a; (5)-c; (6)-c; (7)-b; (8)-c; (9)-c; (10)-a; (11)-c; (12)-a; (13)-a; (14)-c; (15)-c