Q1. If 50 of 2 3 solution of milk and water is replaced with water then the concentration of the solution is reduced by

Q2. A shopkeeper purchase two quantities of rice at the rate of Rs 280 kg and Rs 260 kg In 52 kg of the second quantity how much rice of the first quantity should be mixed so that by selling the resulting mixture at Rs 300 kg he gains a profit of 25

Q3. A goldsmith has 500 gms of gold part of which he sells at 8 profit and the rest at18 profit He gains 14 on the whole The quantity sold at 18 profit is

Q4. 12 litres of water is drawn out from a container full of water and replaced by milk Again 12 litres of mixture are drawn and the container is again filled with milk The ratio of final quantity of water to milk in the container is 11 25 How much did the container hold

Q5. In some quantity of ghee 60 is pure ghee and 40 is vanaspati If 10 kg of pure ghee is added then the strength of vanaspati ghee becomes 20 The original quantity was