P’s 5 days work is equal to Q’s 7 days work. If P and Q together can complete the work in 20 days then how much time Q will take to complete 75% of the work?
Ratio of efficiency of P and Q = 7:5 Let the efficiency of P and Q be 7x and 5x units per day respectively. Total work = 12x × 20 = 240x units Required time = (0.75 × 240x)/5x = 36 days
A vessel is completely filled with milk. If 55% of the milk is replaced with water then only 106.2 ml of milk will be left in the vessel. What is the to...
If 4 kg of metal of which 1/3rd is zinc and the rest is copper, be mixed with 5kg of metal, of which 1/6 is zinc and the rest is copper, then...
A mixture contains ‘X’ liter milk and ‘Y’ liter water. If 30 liter of mixture is taken out and replaced with water, then the quantity of milk an...
378 ml of mixture ‘A’ contains milk and water in the ratio 4:5 respectively. If the quantity of milk in mixture ‘B’ is 37.5% mor...
A certain mixture consists of oil and water, with the water content exceeding that of oil by 20%. When 70 ml of oil and 60 ml of water are introduced in...
The diluted wine contains only 8 liters of wine, and the rest is water. A new mixture whose concentration is 30%, is to be formed by replacing wine. How...
640 gms mixture contains sugar and rice in the ratio of 3:5 respectively. If 40 gms of sugar and 80 gms of rice are added to the mixture, then calculate...
A mixture P, consisting of 648 ml, contains milk and honey in the ratio of 5:4. This is combined with another mixture Q, which has a milk to honey ratio...
There is 135 litres of mixture of milk and water in a jar. The ratio of quantity of milk to water in the jar is 4:3, respectively. If ‘x’ litres of ...
A jar contains a mixture of milk and water in the ratio 2:3, respectively. If 3-litres of the mixture is taken out, then the quantity of water left in t...
