Question

Jyothi alone can finish a piece of work in 12 days and Saira alone can do it in 15 days
both of them work at it together, how much time will they take to finish it?​

Answer 1

Step-by-step explanation:

Question ↘️

Jyothi alone can finish a piece of work in 12 days and Saira alone can do it in 15 days

Jyothi alone can finish a piece of work in 12 days and Saira alone can do it in 15 daysboth of them work at it together, how much time will they take to finish it?

Answer↘️

Jyothi - 12 days

One day work of Jyothi - 1/12th part __(I)

Saira - 15 days

One day work of Saira - 1/15th part __(II)

So,

for together we have to add both one day work

$( \frac{1}{12} + \frac{1}{15} )$

LCM of 12 and 15 - 60

$\frac{5 + 4}{60}$

9/60

3/20

1 day 3/20 part

1 part - 20/3 days

$6 \frac{2}{3} days$

Answer 2

Answer:

here is ur answer

Step-by-step explanation:

refer the attachment plz