Cost and sell price

A wholesaler sold items at a profit of 20% of the sales, which was a profit of P52.80. What were the cost price and selling price of the item?

Correct answer:

a =  264 P
b =  316.8 P

Step-by-step explanation:

r=20%=10020=51=0.2 P=52.80 P  a+P=b  P=r a 52.8=0.2 a  0.2a=52.8  a=0.252.8=264  a=264=264 P
b=a+P=264+52.8=316.8 P

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