Question 814628
If tap #1 can fill the bath in 3 hours when there is no leak,
it delivers water at a rate of
{{{150L/"3 hr"= 50}}}{{{"L / hr"}}} .
If tap #2 can fill the bath in 5 hours when there is no leak,
it delivers water at a rate of
{{{150L/"5 hr"= 30}}}{{{"L / hr"}}} .
If tap #3 can fill the bath in 10 hours when there is no leak,
it delivers water at a rate of
{{{150L/"10 hr"= 15}}}{{{"L / hr"}}} .
 
All three taps together can deliver water at a rate of
{{{50+30+15=95}}}{{{"L / hr"}}} .
With a {{{35}}}{{{"L / hr"}}}  leak the water level will increase at a rate of
{{{95-35=60))){{{"L / hr"}}} .
 
1) At that rate the pool will fill in
{{{150L/"60 L / hr"=highlight(2.5hours)}}} .
 
2) Over that time, the 3 taps will have delivered
{{{(2.5hr)("95 L / hr")=highlight(237.5L)}}} .