Question

A shopkeeper buys 80 articles for Rs 2400 and sells them for a profit of 16%.Find the selling price of one article

Answer 1

cp of 80 article =2400
sp of 80 article=
2400=sp*100/100+16
2400=sp*100/116
2400*116/100=sp
24*116=sp
Rs2784=sp
ttherefore
cost of 1 article=2784/80=Rs34.8

Answer 2

CP of 80 articles =Rs. 2400
Profit℅ =16%
SP= CP *(100+profit %/100)
SUBSTITUTE THE VALUES
SP= 2784
Therefore,
SP of one article =34.80

Hope it helps... :)