Question 394912
For six consecutive years, a man's age was a multiple of his granddaughter's age. How old was each during the sixth year?
:
Assume the granddaughter's age is 1, after that, find 5 consecutive number which aren't prime;
the fifth year has be have a 5. Using the "try and see" method. How about:
:
Gd | Gf
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 1 | 61
 2 | 62
 3 | 63
 4 | 64
 5 | 65
 6 | 66