12. Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job

Question

3 years ago

7

in 1 ½ hours. How quickly can all three fill the pool together?

2 answers:

tiny-mole [99] · Answer 1 · 2022-06-24T20:52:36+03:00

3 0

Answer:

2 hrs 45 mins

Step-by-step explanation:

30min + 45min = 1hr 15min + 1hr 30min = 2hrs 45mins

RoseWind [281] · Answer 2 · 2022-06-24T22:00:51+03:00

3 0

Answer:

<em>15 minutes </em>

Step-by-step explanation:

$\frac{1}{30}$ + $\frac{1}{45}$ + $\frac{1}{90}$ = $\frac{3}{90}$ + $\frac{2}{90}$ + $\frac{1}{90}$ = $\frac{6}{90}$ = $\frac{1}{15}$

All three can fill the pool in <em>15 minutes</em>