Question 1040475
A's rate of working is [ 1 job done ] / [ 12 days ], or
{{{ 1/12 }}}
B's rate of working is [ 1 job done ] / [ 15 days ], or
{{{ 1/15 }}}
C's rate of working is [ 1 job done ] / [ 24 days ], or
{{{ 1/24 }}}
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What fraction of the job does A get done in {{{ 3 }}} days?
He gets {{{ 3/12 }}} of the job done
What fraction of the job does B get done in {{{ 15 }}} days?
He gets {{{ 15/15 }}} of the job done
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Something is wrong here- B gets the whole job done and
there is nothing for A or C to do. I think you miscopied
the problem!