Question

1. If the profit % is numerically equal to the C.P. in rupees
and the S.P. is Rs.39, what is the C.P.?​

Answer 1

Step-by-step explanation:

SP = Rs. 39

CP = x(let)

Profit % = CP

or,39−xx×100=x

[%profit=SP−CPCP]

3900−100x=x2x2+100−3900=0

x=30

(we cannot take negative value of x)

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