Question

. The cost of a pen and a ball pen are in the ratio of 7:5. If th
cost is 48, find the cost of each​

Answer 1

Step-by-step explanation:

let

cost of pen = 7x

cost of ball pen = 5x

ATQ

7x + 5x = 48

12x = 48

x = 48/12

x = 4

cost of pen = 7x = 7*4 = 28

cost of ball pen = 5x = 5*4 = 20