Question

The laborers can finish cementing 4/5 kilometer of road in a day.how many kilometers of road can they finish if they work for 10 1/2 days?

Answer 1

Answer:

42/5 km

Step-by-step explanation:

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Answer 2

Given:

The labourers can finish cementing 4/5 kilometer of road in a day.

To find:

How many kilometers of the road can they finish if they work for 10 1/2 days?

Solution:

In 1 day, Labourers can finish cementing = $\frac{4}{5}$ kilometer of the road

Now,

No. of given days the labourers had worked for = $10\frac{1}{2}\: days = \frac{21}{2}\: days$

∴ In $\frac{21}{2} \: days$ , the kilometers of the road, the labourers can finish is,

=  $\frac{4}{5} \times \frac{21}{2}$

= $\frac{84}{10}$

= $\bold{8.4 \:km}$

Thus, if the labourers work for $10\frac{1}{2}$ days, they can finish 8.4 kilometers of the road.

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