Question

a fruit seller buys apple at the rate of 4 for 10and sale them at the rate of 9 for 21. find his loss and gain percent​

Answer 1

cp of 1 apple = 4/10 = 0.4

sp of 1apple = 9/21 = 0.421

gain = 0.421 -0.4

= 0.021

g% = 0.021/0.4×100

= 5.25%