Question

Find the missing term

Answer 1

1)10/n=5/18

n=10×18/5

n=36

2)24/20=n/15

n=24×15÷20

n=18

3)n=6.4×8.5/20

n=2.72

Answer 2

a) 10/n = 5/18

  = 10 × 18 = 5 × n

 = 180 / 5 = n

 → n = 36

b) 24/20 = n/15

  = 24 × 15 = 20 × n

  = 360 / 20 = n

  → n = 18

c) 6.4/n = 20/8.5

  = 6.4 × 8.5 = 20 × n

  = 54.4/20 = n

  → n = 2.72