Question

what is the rate of discount being offered if a notebook with rs 56 printed on it is sold for rs 7 less

please ​

Answer 1

Step-by-step explanation:

so cost to print the book=₹56

and sp=56-7=₹49

do let the discount =x%

so ATQ

$56 - \frac{x}{100} \times 56 = 49 \\ 56 - \frac{14x}{25} = 49\\ = \frac{1400 - 14x}{25} = 49 \\ 1400 - 14x = 1225 \\ - 14x = 1225 - 1400 \\ = - 14x = - 175 \\ x = \frac{ - 175}{ - 14} = 12.5$

so the discount was 12.5%