Question

Rahul sold a watch to Sohan at a gain of 10% and sohan sold it to Mohan at a loss 10% if Mohan paid rupees 990 for find the price paid by Rahul

Answer 1

Let the C.P of the watch when Rahul bought it be x rs.

gain % when sold to Sohan=10% of x

gain made=rs.10/100×x=x/10

S.P for rahul=gain +C.P
=x+x/10
=11x/10
S.P for rahul= C.P for sohan=11x/10

loss % when sold to Mohan=10% of 11x/10

loss=11x/100

S.P for sohan=C.P- loss
=11x/10-11x/100
=99x/100

S.P for sohan=C.P for Mohan

A/Q

990=99x/100

=)990×100÷99=x

=)x = 1000

Answer 2

Answer:

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