Question

15/18 = blank/6= 10/blank= blank/30

Answer 1

Let the blank space be a

1.)

15 / 18 = a/6

=> a = 15 ×6 / 18

=> a = 90/18

=> a = 5

2.)

15/18 = 10 / a

=> a = 10 × 18 / 15

=> a = 180 / 15

=> a = 12


3.)

15/18 = a/30

=> a = 15 × 30 / 18

=> a = 450 / 18

=> a = 25