a shopkeeper sold two heaters for rs 2970 each. on one he gains 10% and on the other he loses 10%. calculate his gain or loss per cent in the whole transaction.
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2970 + 10=2980
2970-10=2960
2980+2960=20
2970-10=2960
2980+2960=20
sg9134108584:
Trinetr nic try but it is wrong
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