The table shows information about water used in a household.
The value for April is missing.
The mean monthly water used for the six months is 18 m
Work out the value for April.
![The table shows information about water used in a household The value for April is missing The mean monthly water used for the six months is 18 m Work out the v class=](https://us-static.z-dn.net/files/dc4/d3cc53b4808604a9b71ca442474a0192.png)