Richa poured 1 litre of milk into two bottles such that the first bottle holds $\frac{1}{4}$ litre and the other holds $\frac{3}{4}$ litre. How many millilitres of milk does each bottle hold?

The correct option is A 250mL, 750mL
Half of 1 litre = 500 mL
Quarter of 1 litre = Half of half litre = 250 mL
Three quarters of 1 litre = Half of one litre and a quarter of 1 litre

First bottle can hold one quarter of a litre = 250 mL

Second bottle can hold three quarters of a litre = Half of one litre and a quarter litre
= 500 mL + 250 mL = 750 mL