Percentages 1/3

17. A man's basic pay for a 40 hour week is Rs.20. Overtime is paid for at 25% above the basic rate. In a certain week he worked overtime and his total wage was Rs.25. He therefore worked for a total of :
a. 45 hours
b. 47 hours
c. 48 hours
d. 50 hours


18. On decreasing the price of T.V.sets by 30% , its sale is increased by 20%. What is the effect on the revenue received by the shopkeeper ?
a. 10% increase
b. 10% decrease
c. 16% increase
d. 16% decrease


19. Water tax is increased by 20% but its consumption is decreased by 20%. Then, the increase or decrease in the expenditure of the money is :
a. No change
b. 5% decrease
c. 4% increase
d. 4% decrease


20. The price of sugar is increased by 20%. If the expenditure is not allowed to increase, the ratio between the reduction in consumption and the original consumption is :
a. 1:3
b. 1:4
c. 1:6
d. 1:5


21. The price of cooking oil has increased by 25% . The percentage of reduction that a family should effect in the use of cooking oil so as not to increase the expenditure on this account is :
a. 15%
b. 20%
c. 25%
d. 30%


22. What will be 80 percent of a number whose 200 percent is 90 ?
a. 144
b. 72
c. 36
d. None of these


23. In an election between two candidates, the candidates who gets 30% of the votes polled is defeated by 15000 votes. The number of votes polled by the winning candidate is :
a. 11250
b. 15000
c. 26250
d. 37500


24. In a college election, a candidate secured 62% of the votes and is elected by a majority of 144 votes. The total number of votes polled is :
a. 600
b. 800
c. 925
d. 1200


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