Question

how to do question 7

QUESTION:

The cost price of an article is 90%of it's selling price. Find his profit percentage

Answer 1

☆Hello friend☆

Let's take SP be x
CP= 90x/100
Profit= SP-CP
P= x-90x/100
P= 10x/100

P%= P/CP ×100
P%= (10x/100/90x/100 ×100)%
P%= (10x/100×100/90x×100)%
P= 100/9% or 11 whole 1 by 9 %

$hope \: it \: helps$
☺☺☺