If rupee one produces rupees nine over a period of 40 years, find the rate of simple interest?
Options:
(A) 22 1/8 %
(B) 22 9/2 %
(C) 22 1/7 %
(D) 22 1/2 %
(E) 21 1/2 %
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9 = (1*40*R)/100
R = 22 1/2 % So the answer is: (D).
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The speed of a boat in still water is 80kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?
Options:
(A) kmph
(B) kmph
(C) kmph
(D) kmph
(E) kmph
--
Speed downstream = 80 + 20 = 100 kmph
Speed upstream = 80 - 20 = 60 kmph So the answer is: (D).
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Twenty percent of Country Y's yearly exports come from fruit exports. One-sixth of all fruit exports from Country Y are orange exports. If country Y generates $5 million from its orange exports, how much money does it generate from its yearly total of exports?
Options:
(A) $21.25m
(B) $25.5m
(C) $106.25m
(D) $127.5m
(E) $150m
--
2/10*1/6*(total) = 5
1/30*(total) = 5
(total) = 5*30 = 150 So the answer is: (E).
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