Question

A phone store earned 15,000r after they sold 3 phones .write an equation that can be used to express the relationship between the total money earned and the number of phones sold.

Answer 1

let the one phone be x.

total number of phones sold = 3 or 3x ...............i

money earnt by selling 3 phones = Rs 15000...ii

from i and ii,
3x = 15000
x = 15000÷3

hence x =5000

we can say that for every single phone sold, the phone store earns Rs 5000.