Question

On selling a watch for rs 280, a man earns 1/3 of cost price. Find the cost price?
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Answer 1

Answer:

210 rs

Step-by-step explanation:

A man earns 1/3 cost price so his watch price must be 4/3 cost price. So the cost price is:

280 : 4 x 3 = 210 (rs)