Question

Divya and ranu together can do piece of work in 15 days Divya alone can finish the work in 20 days in how many days can ranu alone finish the work​

Answer 1

Answer:

Divya and ranu together can do piece of work in 15 days Divya alone can finish the work in 20 days in how many days can ranu alone finish the work

Answer 2

Step-by-step explanation:

Time taken by Divya and ranu to do a piece of work = 15 days

(Divya + Ranu)'s 1 day work = 1/15 part

Let Ranu work be x

so,

$\frac{1}{20} + x = \frac{1}{15} \\ \\ x = \frac{1}{15} - \frac{1}{20} \\ \\ = \frac{4 + 3}{60} = \frac{7}{60} \\ \\ work \: done \: by \: renu \: = \frac{60}{7} \\ = 8 \frac{4}{7} days$