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1. A man purchased some fruits for Rs. 1000. He sold few fruits worth 400 at 10% profit. At what profit per cent, must he sell the rest in order to gain 20% on the whole?
1000(CP) ⇒ 20%(gain) ⇒ 1200(SP)
Total Profit = 1200 - 1000 = Rs. 200
400 ⇒ 10%(gain) ⇒ 440
He gets Rs. 40 profit on 400
Rest Profit = 200 - 40 = 160
Then he must get Rs. 160 as profit on Rs. 600
Hence, % profit
=
=
= %
Solution:
To get 20% profit on whole,1000(CP) ⇒ 20%(gain) ⇒ 1200(SP)
Total Profit = 1200 - 1000 = Rs. 200
400 ⇒ 10%(gain) ⇒ 440
He gets Rs. 40 profit on 400
Rest Profit = 200 - 40 = 160
Then he must get Rs. 160 as profit on Rs. 600
Hence, % profit
=
=
= %