Question

If Praveen and Naveen together can complete a piece of work in 15 days and Naveen alone in 20 days, in how many days can Praveen alone complete the work?

Answer 1

ANSWER :-

Naveen and Praveen complete work in = 15 days

work of (Naveen+Praveen)

$= \frac{1}{15} days$

Naveen alone completes the work in = 20 days

Work of Naveen

$\frac{1}{20} days$

Then , Praveen's work

$= \frac{1}{15} - \frac{1}{20}$

$= \frac{4 - 3}{6}$

$= \frac{1}{60}$

$= 60days$

Thus , Praveen can complete work in 60 days .

Answer 2

Praveen completes the job in 60 days .

Given:

Praveen and Naveen together can complete a piece of work in 15 days and Naveen alone in 20 days.

To find:

The number of days Praveen alone complete the work.

Step-by-step explanation:

Naveen and Praveen together can complete the job in = 15 days

Naveen alone completes the job in = 20 days

Then , Praveen alone can complete the work in

=1/15-1/20

=1/60

=60 days

Thus , Praveen can complete work in 60 days .

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