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Percentage

Q11. A reduction of 20% in the price of rice enables a person to buy 3.5 Kg more rice for Rs. 385. The original price of the rice is
(a) Rs. 25.50 /Kg
(b) Rs. 26 /Kg
(c) Rs. 27.50 /Kg
(d) Rs. 28.50 /Kg

Q12. The quantity of water that should be added to reduce 10ml lotion containing 60% alcohol to a lotion containing 40% alcohol is
(a) 5 ml
(b) 8 ml
(c) 11 ml
(d) 13 ml

Q13. In two successive years, 200 and 150 students of a school appeared at the final examination. Respectively 70% and 60% of them passed. The average rate of pass is
(a) 63.25%
(b) 65.12%
(c) 65.71%
(d) 66.10%

Q14. In two successive years, 100 and 80 students of a school appeared at the final examination. Respectively 75% and 60% of them passed. Teh average rate of fail is
(a) 28.75%
(b) 31.66%
(c) 32.54%
(d) 37.45%

Q15. The price of petrol is increased by 20%. By how much percent a car owner should reduce his consumption of petrol so that the expenditure on the petrol would not be increased ?
(a) 13(2/3)%
(b) 14(1/5)%
(c) 16(2/7)%
(d) 16(2/3)%



Q16. After reducing the salary of a man by 50% and subsequently it is increased by 40%. The loss is
(a) 10%
(b) 20%
(c) 25%
(d) 30%

Q17. 10% of the electorate did not cast their votes in an election between two candidates. 10% of the votes polled were found invalid. The successful candidate got 54% of the valid votes and won by a majority of 1620 votes. The number of voters enrolled on the voters list was
(a) 15000
(b) 18000
(c) 22000
(d) 25000

Q18. The sum of two numbers is 2490. If 6.5% of one number is equal to 8.5% of the other, then the numbers are
(a) 1025
(b) 1158
(c) 1411
(d) 1735

Q19. In measuring the sides of a rectangle errors of 5% and 3% in excess are made. The error percent in the calculated area is
(a) 5.25%
(b) 8.15%
(c) 9.12%
(d) 11.23%

Q20. Of the 1000 inhabitants of a town, 60% are females of whom 20% are literate. If of all the inhabitants 25% are literate, then what percent of the males of the town are literate
(a) 32.5%
(b) 33.4%
(c) 35.9%
(d) 42.5%


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