# Apipe can fill a pool in 12 hours. another pipe can fill the pool in 18 hours. how long will it take for the two pipes to

###### Question:

## Answers

It takes 7.2 hours for the two pipes to fill the pool if they operate simultaneously

Solution:

Given that,

A pipe can fill a pool in 12 hours

Thus, in one hour first pipe does [tex]\frac{1}{12}[/tex] of the job

Another pipe can fill the pool in 18 hours

Thus, in one hour second pipe does [tex]\frac{1}{18}[/tex] of the job

Therefore, we can say,

In "x" hours, first pipe does [tex]\frac{x}{12}[/tex] of the job

In "x" hours, second pipe does [tex]\frac{x}{18}[/tex] of the job

Working together they do the one job.

Thus, we get,

[tex]\frac{x}{12} + \frac{x}{18} = 1\\\\x(\frac{1}{12} + \frac{1}{18}) = 1\\\\x(\frac{12+18}{12 \times 18}) = 1\\\\x(\frac{30}{216}) = 1\\\\x = \frac{216}{30}\\\\x = 7.2[/tex]

Thus, it takes 7.2 hours for the two pipes to fill the pool if they operate simultaneously

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.

gmt is 4 hrs ahead of edt so just add four hours to 1: 14: 20 (minutes and seconds stay the same)

gmt is 5: 14: 20

hope this !

~just a girl in love with shawn mendes