One machine plows a field in 4 days, another does it in 6 days. How
long does it take using both machines?
Answers
Answered by
2
Answer:
Step-by-step explanation:
Let number of days to complete work be 'x'
(1/4)x+(1/6)x=1
3x+2x=12
5x=12
x=12/5
= 2.4 days
Answered by
3
Answer:
days taken by 1st machine=4
work done in 1day =1/4
days taken by 2nd machine to do the work=6
work done in one day=1/6
if both machines work together
work done in 1 day=1/4+1/6
=1×3/4×3 + 1×2/6×2
=3/12+2/12
=5/12
days taken = 1/5/12 = 12/5
=2.4 days
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