Question

Some toffees are bought at the rate of 11
for 10 and the same number at the rate of 9
for 10. If the whole lot is sold at one rupee
per toffee, find the gain or loss in the whole
transaction.
[Hint. Let the number of toffees bought be the
LCM of 11 and 9.]

Answer 1

Answer:

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Answer 2

answer in the attachment hope it helps you