Jo's mother, Anne, is four times as old as Jo. In four years time, Anne will be three times as old as Jo. How old is Jo? (this i

Question

3 years ago

14

s an easier version of a riddle we'll do in AP CS)

2 answers:

pentagon [3] · Answer 1 · 2022-07-11T03:54:07+03:00

Answer:

Jo's age = x = 8 years

Step-by-step explanation:

Let

Jo's age = x

Jo's mother, Anne's age = 4x

In four years time, Anne will be three times as old as Jo.

Jo's age =3( x + 4)

Jo's mother, Anne's age = 4x + 4

How old is Jo?

Equate Jo's age and his mother's age

3(x + 4) = 4x + 4

3x + 12 = 4x + 4

3x - 4x = 4 - 12

-x = - 8

Divide both sides by -1

x = 8

Therefore,

Jo's age = x = 8 years

aleksley [76] · Answer 2 · 2022-07-11T04:55:10+03:00

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Answer:

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Step-by-step explanation: