Question

Two number are such that the radio between them is 3.5 but if each increase by 10 the radio becomes 5:7 the number are

Answer 1

Answer:

The numbers are 15 and 25

Step-by-step explanation:

Numbers in ratio = 3x : 5x

If each increases by 10 the ratio becomes 5 : 7

$\frac{3x + 10}{5x + 10} = \frac{5}{7}$

$21x + 70 = 25x + 50$

$4x = 20$

$x = 5$

The numbers are 15 and 25

(3x = 3*5 = 15; 5x = 5*5 = 25)