Question

a watch sold for rupees 448 gives a profit of only 12% .find the profit % if the selling price had been ₹ 512.​

Answer 1

Answer:            28%

Step-by-step explanation:

let the c.p. be x

profit %=12%

sp=448

cp+profit=sp

x+12% *x=sp

x+12/100x*x=448

112x=44800

x=400

cp=400

sp=512

profit%=y

400+y/100*400=512

512-400=4y

y=28

hence the profit% would 28%

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