Question

. If the cost price of 12 pens is equal to the selling price of 8 pens, the gain percent is ? *
1 ​

Answer 1

Answer:

11%

Step-by-step explanation:

let cp = ₹1

sp of 8pens = cp + g%of cp

= cp(1+ g/100)

=1+ g/100

sp of 8 pens = cp of 12 pens

1+ g/100 = 12

g= 11%