(b) In 60 gm. of mixture, Quantity of water = 60 x
75
100
= 45 gm Quantity of milk = 15 gm After mixing 15 gm of more water, Quantityof water in new mixture = 45 + 15 = 60 gm ∴ Quantity of water in 75 gm of mixture= 60 gm ∴ 100 gm of mixture will contain =