Question

If 3:x::9:15 them find the value of x​

Answer 1

ATQ

3/x = 9/15 = 3/5

=> x = 5

Hence , x = 5

Answer 2

$3 : x:: 9 : 15 \\ \\ = > 9x = 3 \times 15 = 45 \\ \\ = > x = 5$