FIND THE COST PRICE
s.p.=$21 and gain=5%
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Answer:
your answer is 21.....
Step-by-step explanation:
selling price= 21
profit=5℅
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so, cost price=
SP × [100/100+gain℅]
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Cost price = 21 × [ 100/100+5]
= 21×100/105
= 20............
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