Posted by wan on .
LAST YEAR BOB'S AGE WAS A SQUARE NUMBER AND NEXT YEAR IT WILL BE A CUBE NUMBER. HOW OLD IS BOB NOW ? PLEASE EXPLAIN HOW YOU WORK IT OUT ,THANKS

MATH 
Reiny,
make a list of squares:
1 4 9 16 25 36 49 64 81 100 121 144 169 196 225 ..
and a list of cubes
1 8 27 64 225 ..
which of these are 2 apart ? (next year  last year = 2)
look like 25 and 27
So last year he was 25 and next year he will be 27