Question

20. Mr Mehta purchased a video for Rs 20000 and a television for Rs 30000. On the video he
lost 5% and on the television he gained 8%. Find his total gain or loss per cent.​

Answer 1

Video=>

CP=20000

loss=5*20000/100

= 1000

SP=20000-1000

=19000

TV=>

CP=30000

loss=8*30000/100

= 2400

SP=30000+2400

=32400

therefore,

total CP=20000+30000

=50000

total SP=19000+32400

= 51400

therefore, profit=51400-50000

=1400

therefore, profit%=(1400/50000)*100

=2.8% gain.....

Answer 2

$\Huge\mathrm{Question:}$

Mohit sold a watch to Karim at gain of 10% and Karim sold it to Rahim at a gain of 4%. If Rahim pays Rs. 14300 for it, for how much did Mohit purchase it?

$\Huge\mathrm{Answer:}$

Refer to the attachment.

$\Huge\mathrm{Thanks!}$