Question

after purchasing two copies of the same book x sold them respectively at 0.8 and 1.4 times their costs rise what was the percent gain or loss incurred by X.​

Answer 1

Answer:

10% gain

Step-by-step explanation:

let cp be 100

Atq one copy = 0?8*100=80

one copy sold =1.4*100=140

total money spend 200

totql money earned after selling the copies 80+140=220

total gain is 20rs .which is 10%