Ravi buys some toffees at 5 for a rupee and sells them at 2 for a rupe – InterviewSolution

1.	Ravi buys some toffees at 5 for a rupee and sells them at 2 for a rupee. His gain per cent is
Answer» Cost at which ravi bought=`1/5 `rupees. He sells them at =>`1/2 `rupees Gain percent=`(1/2 -1/5)/1/5 xx 100=150%`

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