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MATH

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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 -

    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

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