Question

Mr william is 4 times older than his daughter, Mow. Six years ago, mr william was seven times older than his daughter. How old is mr william now?

Answer 1

Jawab:

Penjelasan dengan langkah-langkah:

Mr. William = W

Mow = M

Mr. William is 4 times older than his daughter, Mow

W = 4M

Six years ago, mr william was seven times older than his daughter

W - 6 = 7 × (M - 6)

W = (7 × (M - 6)) + 6

4M = (7 × (M - 6)) + 6

4M - 6 = 7M - 42

42 - 6 = 7M - 4M

36 = 3M

M = 12 years old

W = 4M = 4 × 12 = 48 years old