Question

by selling a book for₹250,sonu gains 25%.​

Answer 1

Answer:

It's an incomplete question

Answer 2

hey mate! here's your answer

Cost price of book=₹200,Amount paid for purchasing the watch=1600

by selling a book for 250, Sony gains 25%

cost price=x

gain=(25/100)X = 0.25X

1.25=250

X=200

Cost price of book= ₹200

Rohit sold his wrist watch for 1280 losing thereby 20%

let's say rohit paid= P

loss 20%= (20/100)P= 0.2P

selling price= P- 0.2P= 0.8 P

0.8P= 1280

P= 1600

Amount paid for purchasing the watch 1600

mark brainlaist please