Maths week: Day 2

These problems are tricky!
The 20 Dollar Question.
The hot water tap when it is full-on can fill a bath in 7 minutes.
What fraction of the bath can it fill in 1 minute?
1/7 √
The 40 Dollar Question.
When the cold water tap is full-on it can the
fill the bath completely in 5 minutes.
Colin has just had a long hard run and
wants to have a cold-water bath.
How long will the cold water tap take to fill
3/5 of the bath for Colin?
3 mins- 180 secs √
The 60 Dollar Question.
The cold water tap when it
is full-on can fill a bath in 5
minutes.
The hot water tap when it is
full-on can fill a bath in 7
minutes.
How long will it take both taps
to fill the bath when they are
both set to full-on.
Give you answer in minutes
and seconds.
6 mins - 360 secs x
The 80 Dollar Question.
When the bath is full its volume is 1 cubic
metres. Archi is a person with a volume of
He carefully jumps into the bath.
How much water will spill over the side of
the bath!
Give your answer in cubic metres.
0.08 cubic metres.  x
The 100 Dollar Question.
When the plug is open the bath will empty
completely in 4 minutes.
Now when Toni comes to have a bath the
cold water tap and the hot water tap are both
set to run full-on but unfortunately someone
has left the plug open and the water flows out
at the same time.
How long will it take to fill the bath now?
Give you answer in minutes and seconds.
10 mins - 600 secs x