1.

Selling price of 6 pens is equal to the costprice of 7 pens. Find the gain per cent orloss per cent. ​

Answer»

Step-by-step EXPLANATION:

GIVEN, 6SP=7CP

CP/SP= 6/7

Gain = SP-CP=1

Gain%=1/6×100=50/3=16⅔



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