Question

P, Q and R can finish a task in 8,10 and 12 hours respectively. They have started working together.
How long will they finish their task?​

Answer 1

Step-by-step explanation:

let P=1/8

Q=1/10

R=1/12

IF THEY WORK TOGETHER

1/8+1/10+1/12

$= \frac{15 + 12 + 10}{120}$

=37/120 hours

Answer 2

Answer:

let P=1/8

Q=1/10

R=1/12

IF THEY WORK TOGETHER

1/8+1/10+1/12

= \frac{15 + 12 + 10}{120}=

120

15+12+10

=37/120 hours

please Mark me as Brainliest

I am your follower