Question
A train can normally cover 200 metres in 8 seconds. How
much distance (in km) can the train cover in 3 hours if it travels at 150% of its normal speed?Solution
ATQ,
Normal speed of the train = 200/8 = 25 m/s
150% of normal speed of the train = 25 × 1.5 = 37.5 m/s = 37.5 × 3.6 = 135 km/h
So, distance travelled in 3 hours = 135 × 3 = 405 km
Quantity of water in a 360 litres mixture (alcohol + water) is 20 litres less than the quantity of alcohol in it. Find the quantity of water to be mixed...
A vessel contains 280 litres of milk and water in the ratio of 9:5. If 20 litres of milk is added to the mixture, then find the ratio of milk to water i...
In an 84-liter mixture of petrol and oil, the ratio of petrol to oil is 9:5. A certain amount of this mixture is removed and replaced with an equal amou...
99 ml of mixture ‘P’ contains milk and water in the ratio of 7:4, respectively is mixed with 30 ml of mixture ‘Q’ containing mil...
A 40-litre solution contains 35% acid. How many litres of a 55% acid solution must be added so that the resulting mixture contains 45% acid?
A container contains a mixture of wine and water in the ratio of 4:1. 150 litres of the mixture was taken out and 50 litres of water was added to it. If...
A 30-litre mixture consists of milk and water in the ratio of 5:7. To this mixture, 2.5 litres of milk and 4.5 litres of water are added. How much more ...
- Two mixtures, P and Q, have milk-to-honey ratios of 7:5 and 8:9, respectively. When these two mixtures are combined, the total quantity of the final mixtur...
Three mixtures, containing mixture of sugar to water in the ratio of 6:3, 8:4 and 10:5 are mixed in equal proportion and a new mixture is formed. If the...
A vessel is completely filled with milk. If 43% of the milk is replaced with water then only 171 ml of milk will be left in the vessel. What is the tota...
