Question

Mr. Mehta purchased a video for 20,000 and a
television for 30,000. On the video he lost
5% and on the television he gained 8%. Find
his total gain or loss percent.​

Answer 1

Answer:

Cost price of video =Rs 20000

Cost price of television =Rs 30000

Lost % on video =5%

Gain % on television =8%

Lost %=

CP

CP−SP

×100

5=

20000

20000−SP

×100

1000=20000−SP

SP=19000

Gain %=

CP

SP−CP

×100

8=

30000

SP−30000

×100

2400=SP−30000

SP=32400

Total cost price =Rs 20000+Rs 30000

=Rs 50000

Total selling price =Rs 19000+Rs 32400

=Rs 51400

Total selling price − Total cost price

=Rs 51400−Rs 50000=Rs 1400

He had a Gain of Rs 1400

Gain %=

CP

Gain

×100

=

50000

1400×100

Gain%=2.8%

Step-by-step explanation:

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Answer 2

Answer:

Cost price of video =Rs 20000

Cost price of television =Rs 30000

Lost % on video =5%

Gain % on television =8% 

Please refer the attachment.

$\tt \therefore \: gain\% = 2.8\%$