Question

EX
8. Vani sold her coat for 280 and thereby lost 20%. If she had
sold it for 70 more, what would have been her gain or loss
per cent?
​

Answer 1

Answer:

from case 1:

sp= 280rs,lost%=20

sp=(100- loss%/100)×cp

280=80/100× cp

cp= 350rs

case 2:

sp=280+70=350=cp

so, no profit or loss

hence profit %=loss%=0

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