P alone can finish a piece of work ‘M’ in 8 days while Q takes 4 days to finish it alone. P, Q and R working together can finish the work ‘N’ which is 7 times of work ‘M’ in 8 days. How long will R take to finish work ‘N’, when working alone?
Let the work ‘M’ = 8 units (LCM of 8 and 4) Efficiency of P = 8/8 = 1 units Efficiency of Q = 8/4 = 2 units Efficiency of P, Q and R = (8 × 7)/8 = 7 units per day Efficiency of R = 7 – (1 + 2) = 4 units per day Time taken by R to finish work ‘N’ = 56/4 = 14 days
A mixture (acetone and water) contains 40% acetone and rest 96 litres water. How much acetone should be added to the mixture to make the ratio of aceton...
420 ml of mixture ‘B’ contains only water and milk in the ratio of 7:13, respectively. If the quantity of milk in mixture ‘A’ is 20% more than t...
In a blend of oil and diesel, the amount of diesel constitutes 80% of the quantity of oil present. Additional quantities 'p' liters of oil and 'q' liter...
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...
In a 600-gram mixture, the proportion of Component A to Component B is 3:7. If you add 20 grams of Component A and 80 grams of Component B to the mixtur...
What is the original amount of mixture 'P' if 25% of it, consisting of petrol and diesel in a 5:6 ratio, is combined with 240 liters of mixture 'Q' with...
36 liters of milk were kept in a container. 1.8 liters were removed and replaced with water. This procedure was performed one more time. How much milk ...
A jar contains a mixture of orange juice and water in the ratio of 4:1. 75 litres of the mixture was taken out and 25 litres of water was added to it. I...
A mixture containing milk and water in the ratio of 43:55. If 36 litres of water are taken out from the mixture, then the quantity of milk and water bec...
In a mixture of 45 litres, the ratio of wine to water is 2 : 3. If this ratio is to be 1 : 3, then what is the quantity of water needed to be added?