Boat ‘A’ can cover 160 km in still water in 8 hours. In still water, if the ratio of the speed of boat ‘A’ to that of ‘B’ is 2:3 and the speed of stream is 5 km/hr then find the time taken by boat ‘B’ to cover the 350 km in downstream.
Speed of boat ‘A’ in still water = 160/8 = 20 km/hr Speed of boat ‘B’ in still water = 20 × (3/2) = 30 km/hr Downstream speed of boat ‘B’ = 30 + 5 = 35 km/hr Time taken by boat ‘B’ to cover 350 km in downstream = 350/35 = 10 hours
A chemist prepared 50 grams of a medicine by mixing two ingredients P and 'Q, Rate of 'P' is ₹150 per 10 gm and that of 'Q' is ₹ 500 per 100 gm. 'P'...
In a 160 litres mixture of milk and water, the ratio of the milk to water is 4:1. If 28 litres mixture is taken out and replaced by same quantity of wat...
In a 600 ml mixture of alcohol and water, the ratio of alcohol to water is 3:2. If 200 ml of the mixture is removed and replaced with 50 ml of water, wh...
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...
A mixture of lime and water contains 3a liters lime and (a + 40) liters water. Upon adding 20 liters more water, the ratio of quantity of water to that ...
A container contains (x + 80) litres of milk and x liters of alcohol. If 50 litres of milk and x litres of alcohol is added in the container, then the q...
Vessel contains 40 liters wine. If x liters of wine is taken out and replaced with water, this process is repeated two more times and then quantity of ...
In a mixture of 120 litres, milk was 58(1/3)% and rest was water. If (x + 15) of the mixture is taken out and add 8 litres of milk in it, then the diff...
140 litres of mixture X contains acetone and glycerine in the ratio 5:9, respectively. 70 litres of the mixture is withdrawn and labelled as mixture Y a...
55 litres of a solution contains alcohol and water in the ratio 2:3. Water is added in the solution. The new mixture has a ratio of alcohol and water as...