Question

answer it and I will mark u as brainlist

Answer 1

Step-by-step explanation:

let S. P. of 1 book be 1 Rs

S.P. of 72 books = 72 Rs

loss = 8 Rs

C.P. = S.P. + loss

C.P = 72 + 8

C.P. = 80

$loss\% = \frac{loss}{cp} \times 100$

$loss\% = \frac{8}{80} \times 100$

$so \\ loss \: \% \: will \: be \: 10\%$

hope it helps you