*15. The cost price of a keyboard is 20 times that of a
flute. The profit on selling the keyboard is 13%,
while the total profit on selling the keyboard and flute
is 14%. If there is a profit of 205 on selling the flute,
find the selling price of the keyboard.
(1) 13,500 . (2) 15,300 (3) 15000
(4) 17,000 (5) None of these
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