A man who makes a profit of 25p.c. by selling tea at Rs.4.25 a kg lowers his ratio so as to gain only 17P per kg. In what ratio must his sales increase so that the profit may be the same as before?
A
4 times
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B
5 times
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C
7 times
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D
85 times
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Solution
The correct option is B5 times 125% C.P.=Rs.4.25 ∴ C.P. of tea per kg =Rs.4.25×100125 =Rs.3.40 Gain on 1kg=85P Quantity of tea sold to recover 85P. when gain is 17P per kg =8517=5kg Thus he must increase sales 5 times.