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Thomas is 4 times as old as John. In 12 years' time Thomas will be twice as old as John. What are their present ages?

Solution

Thomas is 4 times as old as John. In 12 years' time Thomas will be twice as old as John. What are their present ages?

Solution

John^{'} s age is : 6

Thomas^{'} s age is : 24

Solution steps

Translate the problem into an equation:

4 x + 12 = 2 (x + 12)

Solve for

x, 4 x + 12 = 2 (x + 12) : x = 6

Find age

John^{'} s age is : 6

Thomas^{'} s age is : 24

Popular Examples

Johnny flipped a coin 450 times. His results are below: What is the experimental probability that the coin lands on heads?The sum of two numbers is 53 . The smaller number is 15 less than the larger number the sum of a number and 8 is less than 35 Twice the sum of a number and six is twenty,:What is the number?two increased by three equals the quotient of ten and two.