Question

Rahul sold a laptop to Akshay for 20,000 . if Rahul incurred a loss of 20%, find the cost price of the laptop .
option A - 30000
option B - 20,000
option C - 25,000
option D - 22,000
​

Answer 1

Answer:

When SP=Rs.9000, loss=10%

So,90%CP=9000

⟹CP=Rs.10,000

If SP=Rs.12,000

Then gain%=

10,000

12,000−10,000

×100=20%

Answer 2

Answer:

When SP=Rs.9000, loss=10%

So,90%CP=9000

⟹CP=Rs.10,000

If SP=Rs.12,000

Then gain%=

10,000

12,000−10,000

×100=20%.