Question 1086551
The rates of working for these
machines are:
Old machine:
[ 38 pieces ] / [ min ]
Newer machine:
[ 82 pieces ] / [ min ]
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Let {{{ t }}} = time in minutes for
both mchine working together
to prepare {{{ 6000 }}} pieces
Add their rates of working to get
their rate working together
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{{{ 38/1 + 82/1 = 6000/t }}}
{{{ 120 = 6000/t }}}
{{{ t = 6000/120 }}}
{{{ t = 50 }}}
It will take them 50 minutes working together