A buys a mobile for 60 rupees and she doesn't like it so she sold for 70 rupees to her friend B, after few months she need that mobile so again A get from her by giving 80 rupees, after few days she doesn't like that mobile so again she sold to her for 90 rupees.....is there gain or loss to A and what would be the respective percentage??????

Question

mathstudent55 · Answer

A bought for 60
A sold for 70
A bought for 80
A sold for 90
-60 + 70 - 80 + 90 = 20

anonymous · Answer

oh tanq.....

mathstudent55 · Answer

I used negative for an expense and positive for a sale.
After selling the phone the seocnd time for 90 rupees, A has a profit of 20 rupees.

mathstudent55 · Answer

wlcm