Question

if the cp of 21 articles are same as the sp of 28 articles find loss or profit percent ​

Answer 1

Question ⤵️

if the cp of 21 articles are same as the sp of 28 articles find loss or profit percent .

Answer ⤵️

CP of each article be Rs 1

CP of 18 articles =Rs18 ,sp of 18 articles =Rs 21

Profit=21−18=3Rs.

$= \frac{3}{18} \times 100 = 16 \frac{2}{3} \: percent$

Hope it helps you ✌️

Step-by-step explanation:

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Answer 2

Answer and Step-by-step explanation:

CP of 21 articles=x

CP of 1 article=x/21

SP of 18 articles=x

SP of 1 article=x/18

since x/21 <x/18, there is a gain

gain=SP-CP

=x/18-x/21

=(7x-6x)/126

=x/126

gain%=gain/CP×100

=(x/126÷x/21)×100

=(x/126×21/x)×100

=100/6

=50/3

=16 2/3%