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Phổ biến Word Problems >

Jonathan is now three times as old as his son is. Twelve years ago he was six times as old as his son was. Find the present ages.

Lời Giải

Jonathan is now three times as old as his son is. Twelve years ago he was six times as old as his son was. Find the present ages.

Lời Giải

Son^{'} s age is : 20

Jonathan^{'} s age is : 60

Các bước giải pháp

Translate the problem into an equation:

3 x - 12 = 6 (x - 12)

Giải

x, 3 x - 12 = 6 (x - 12) : x = 20

Tìm age

Son^{'} s age is : 20

Jonathan^{'} s age is : 60

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