Question
A train of length 180 m crosses another train of length
120 m coming from the opposite direction. If the speeds of the two trains are 6 m/sec and 9 m/sec respectively, what time will they take to completely pass each other?Solution
ATQ,
Relative speed = 6 + 9 = 15 m/sec
Combined length = 180 + 120 = 300 m
Time taken = 300 / 15 = 20 seconds
150 litres of Mixture ‘A’ (water + alcohol) contains 32% water and remaining alcohol while 112 litres of mixture ‘B’ (milk + water) contains 20 ...
A container contains Alcohol and water in ratio of 2:1 and Capacity of Container is 66 lit. If half of the Container is replaced with 20 lit of water th...
A container was filled with pure milk. A person removed 10 litres of milk and refilled it with water to hide the act. He repeated the same act once agai...
A mixture consists of milk and water in a ratio of 5:3. When 160 ml of this mixture is removed and replaced with 60 ml of water, the quantity of milk be...
In a mixture consisting of 400 ml of wine and lemon, the volume of wine exceeds that of the lemon by (200/3)%. Following the removal and replacement of ...
A 200-litre mixture of milk and water is currently in the ratio 3:5. To reduce the percentage of milk in the mixture to 25%, how ...
- Rice worth Rs. 25/kg and Rs. 50/kg are mixed with a third variety in the ratio 3:2:1, respectively. If the final mixture is worth Rs. 35/kg, then the price...
- Out of 180 litres of paint mixture, the ratio of red to blue paint is 5:4. What quantity of red paint should be added to make the ratio 7:5?
Quantity of milk is 10% more than that of water in 210 litres mixture. On adding (n - 5) litres water and (n + 5) litres milk, the new ratio becomes 11:...
- A solution contains acid and water in the ratio 2:3. After adding 4 litres of acid and 3 litres of water, the ratio becomes 3:4. What was the initial quant...
