8 men and 12 boys can finish a peice of work in 5 days. while 6 men and 8 boys can finish it in 7 days. find the time tacen by 1 man and 1 boy alone.
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Answer:
1st eqn. is
=8x+12y=5and
2nd eqn. is
=6x+8y=7
we can find the value of x and y.
By Ellimination metod..
=3(8x+12y=5)
=4(6x+8y=7)
24x+36y=15
24x+32x=28
changed sign and solved...
hope u understand....
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