two numbers are such that the ratio between them is 3:5 if it is increased by 10 the ratio between the new number so formed is 5:7 find the original number
Answers
Answered by
2
let the previous numbers be 3x and 5x
then, 3x+10/5x+10=5/7
21x+70=25x+50
-4x=-20
x = 5
so original numbers are 3*5 and5*5
15 and 25
then, 3x+10/5x+10=5/7
21x+70=25x+50
-4x=-20
x = 5
so original numbers are 3*5 and5*5
15 and 25
Similar questions