21) A reduction of 25% in the price of rice, enables a person to buy 5 Kg more for Rs 120. Find the original price of rice per kg.
a) Rs 8
b) Rs 10
c) Rs 12
d) Rs 15
22) Two successive discounts of 8% and 12% are equal to single discount of
a) 20%
b) 19.04%
c) 20.96%
d) 22%
23) The price of a product of a company increases by 10% and the turnover increases by 10%. What is the change in equally sold?
a) 10%
b) 8%
c) 20%
d) No change
24) Mr. A is a computer programmer. He is assigned three jobs for which time allotted is in the ratio of 5 : 4 : 2 (jobs are needed to be done individually). But due to some technical snag, 10% of the time allotted for each job gets wasted. Thereafter, owing to the lack of interest, he invests only 40%, 30%, 20% of the hours of what was actually allotted to do the three jobs individually. Find how much percentage of the total time allotted is the time invested by A.
(a) 38.33%
(b) 39.4545%
(c) 32.72%
(d) 36.66%
25) For the above questions, the exchange rates for the three currencies with respect to a dollar was:
2$ per Lira, 1.5$ per Franc and 1.4 dollar per Deutshce Mark. If Dr. Iyer has 100 liras, 100 Deutsche Marks and 100 Francs on 31st December 2001, the maximum percentage change he can achieve in his net holding in terms of dollars due to the arbitrage created by the Euro conversion could be
(a) 17.23%
(b) 7.33%
(c) 11.2%
(d) Cannot be determined
26) A 14.4 kg gas cylinder runs for 104 hours when the smaller burner on the gas stove is fully opened while it runs for 80 hours when the larger burner on the gas stove is fully opened. Which of these values are the closest to the percentage difference in the usage of gas per hour, between the smaller and the larger burner?
(a) 26.23%
(b) 30%
(c) 32.23%
(d) 23.07%
27) The tax on a commodity is diminished by 15% and its consumption increased by 15%. Find the % decrease in the revenue collected from it.
a) 2%
b) 2.5%
c) 2.25%
d) 2.75%
28) Due to increase of 30% in the piece of a colour TV the sale is reduced by 40%, then what will be the % change in income ?
a) 10% increase
b) 10% decrease
c) 35% decrease
d) 22% decrease
29) England scored a total of x runs in 50 overs. India tied the scores in 20% less overs. If India’s average run rate had been 33.33% higher the scores would have been tied 10 overs earlier. Find how many runs were scored by England.
(a) 250
(b) 240
(c) 200
(d) Cannot be determined
30) The ratio of Sagar’s salary for October to his salary for November was 1.5 : 1.333 and the ratio of the salary for November to that for December was 2 : 2.6666. The worker got 40 rupees more for December than for October and received a bonus constituting 40 per cent of the salary for three months. Find the bonus. (Assume that the number of workdays is the same in every month.)
(a) 368.888 rupees
(b) 152.5555 rupees
(c) 222.22 rupees
(d) 265.6 rupees
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