Question

Vipin sold two tape -recorders for
Rs 3780 each. On selling one
tape recorder, he had a gain of 5
°% and on selling the other one ,
he had a loss of 10%. Find his
gain or loss percent in the whole
transaction.

Answer 1

Answer:

sp of tape recorder=RS 3780 each

for first tape recorder

gain=5%

cp= 100/(100+gain)xsp

=(100/105)x3780

=378000/105

=3600

for second tape recorder

loss =10%

cp=(100/90)3780

=378000/90

=4200

total cp=4200+3600

=7800

total sp=3780+3780

=7560

loss= 7800-7560

=240

loss%=240x100/7800

=24000/7800

=240/78%

=40/13%