My mother buys two litres of milk every day. Sometimes we need more milk if there is any festival or if any guests come to our home. Then my mother buys more milk. Sometimes, the whole milk bought in a day is not used completely, so she uses the leftover milk from the previous day and buys less amount of milk than the usual count of 2 litres. So sometimes, it increases, sometimes it decreases. The NCERT Solutions for Class 2 are available on Vedantu .