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受欢迎的 Word Problems >

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

解答

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

解答

Son^{'} s age is : 20

Jonathan^{'} s age is : 60

求解步骤

Translate the problem into an equation:

3 x - 12 = 6 (x - 12)

求解

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

找到 age

Son^{'} s age is : 20

Jonathan^{'} s age is : 60

流行的例子

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