If a shopkeeper wants to give 20% discount on a toy, he has to sell it for Rs.300. If he sells it at Rs.405, then his gain percentage is
let the initial price of the toy be `100x
the shopkeeper is giving 20% discount
that means he is selling for 80x
given that 80x = 300
so,x=3.75
therefore initial price = 100*3.75
=>375
and he sells for 405
so the gain percent is 405-375/405*100
=>8%
hence answer is option c
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