Question

on selling a fan for rupees 810 Sunil gains 8% for how much did he purchase it​

Answer 1

here's your answer it may help you

Answer 2

$<b>$ Given that SP of the fan is ₹810

So,

Let the CP be x

According to question..

➡️X +8% of x is 810

➡️X/1 + 8x/100 = 810

➡️100x +8x/100 = 810

➡️108x = 810 × 100

➡️X = 810×100/108

➡️X => 750