#volumeofcube&cuboid
Difference
`4/5` - `1/2` = `8/10` - `5/10` = `3/10`
`3/10` of tank = 4.5l
`10/10` of tank = (4.5 `-:` 3) `xx` 10 = 15l
15l = 15000ml = 15000 cm2
Height of tank
15000 `-:` 500 = 30 cm
#volumeofcube&cuboid
No. of cubes
7 + 2 + 1 = 10
vol. of 1-cm cubes
1 `xx` 1 `xx` 1 = 1cm^{3}
vol. of solid
10 `xx` 1 = 10 cm^{3}
#volumeofcube&cuboid
(part a):
Fraction of water needed to fill tank
`4/4` - `1/4` = `3/4`
Amt. of water needed to fill tank
60 `xx` 10 `xx` 24 `xx` `3/4`
14400 `xx` `3/4`
10800 ml
(part b):
Effective filling rate (difference between tap X and Y)
1050 - 750 = 300cm3
Amt. of minutes to fill up tank
10800 `-:` 300 = 36 mins
#volumeofcube&cuboid
Currntly no. of cubes
7 + 3 + 1 = 11
Total no. of cubes container can hold
4 `xx` 3 `xx` 3 = 36
#volumeofcube&cuboid
Current height of water
120 `-:` 20 = 6 m
6 cm = `3/4` filled
`1/4` filled = 6 `-:` 3 = 2 m
`4/4` filled = 2 `xx` 4 = 8 m
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