Question

Amy is 6 years older than Jonny. Six years ago she was twice as old as he.​

Answer 1

Answer:

It is a tricky question

Step-by-step explanation:

1st Method

Let Abigail and Johnathan be a and j years old respectively, 6 years ago.

a = 2j

If Abigail is currently 6 years older than Johnathan, this would also be true 6 years ago.

Age difference = 2j - j = 6

j = 6

Thus a = 2(6) = 12

Currently, Abigail and Johnathan would be 18 and 12 respectively

2nd Method

Assume Jonny is age y and Amy is age 6 plus y.

six years prior, their ages

Age of Jonathan = y — 6

Age of Abigail = (6 + y) – 6 = y

Jonathan and Abigail were both twice as old because y = 2(y —6) y = 2y —12 y = 2y — y 12 = y.

Jonathan is 12 years old.

Age of Abigail: (12 + 6) = 18 years.

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