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3 years ago

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Six machines, each working at the same constant rate, together can complete a certain job in 12 days. How many additional machin

es, each working at the same constant rate, will be needed to complete the job in 8 days?

1 answer:

Schach [20]3 years ago

7 0

Answer:

3 machine

Step-by-step explanation:

It is given that 6 machine each working at the same rate can complete the work in 12 days

We the has to complete in 8 days

Let we need x extra machine to complete the work in 8 days

So total number of machines =x+6

Now according to man work day equation $M_1D_1=M_2D_2$

$6\times 12=(x+6)\times 8$

$8x+48=72$

$8x=24$

x=3 machine

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Answer:

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