Question

When the price of a toy was increased by 20%,
number of toys sold was decreased by 15%. What v
che effect on the sales of the shop?
4% increased
4% decreased
2% increased
2% decreased​

Answer 1

Answer:

let total number of toy sellinng be x

and price of 1 toy =y

so total cost earned =xy

now x become x×(1-.15)

and y become y ×(1+.20)

now total earning =

1.20x × .85y =1.02xy

so increase in earning = 1.02xy -xy

.02xy

so % increase would be 2%