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Total distance = 300 km + 200 km = 500 km Total time = 300 km / 60 km/h + 200 km / 80 km/h = 5 hours + 2.5 hours = 7.5 hours Average speed = Total distance / Total time = 500 km / 7.5 hours = 66.67 km/h or 68 km/h (approximately)
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 container contains 60 liters of a solution containing 25% alcohol. How many liters of pure alcohol must be added to make the alcohol concentration 40%?
A mixture of milk and water contains 30% water. On adding 18 litres of water, the quantity of milk becomes 50% more than that of water. Find the initial...
There are two mixtures, 'I' and 'J' of milk and water. Total quantity of mixture 'I' and mixture 'J' are 9 litres and 21 litres, respectively. Mixture '...
Quantity of water in a 400 litres mixture (alcohol + water) is 40 litres less than the quantity of alcohol in it. Find the quantity of water to be mixed...
In a 168-litre mixture, the proportion of milk to honey is 5:2. If 'p' litres of honey are added to this mixture, making the new ...
155 litres of a mixture contains 42% milk and rest water. If ‘x’ litres of milk is added into the mixture then quantity of water in the final mixtur...
A man initially has a mixture of milk and water, with 80% of the mixture being milk. He sells 20 litres of this mixture and replaces it with the same a...
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 ...
