Question
Two trains running at the rates of 108 and 90 kmph
respectively, On parallel rails in opposite directions, are observed to pass each other in 24 seconds, and when they are running in the same direction at the same rate as before, a person sitting in the faster train observes that he passes the other in 64 seconds. Find the lengths of the trains.Solution
Ratio of present ages of ‘M’ and ‘N’ is 4:3 respectively. After 6 years, ratio of ages of ‘N’ and ‘M’ becomes 5:7 respectively. Find the...
- Present age of ‘R’ is 30% more than that of ‘S’. 4 years ago, ‘R’ was 1.6 times as old as ‘S’. Find the present age of ‘S’.
- The ratio of the ages of two friends is 4:3, respectively. If the difference between their ages is 9 years, then find the age of the younger friend.
The ratio of age of A and his son is 10:3. If the difference of their ages 8 year ago is 28, then find the sum of ages of A and his son 12 year hence.
The present ages of 'Neha' and 'Priya' are in the ratio 3:4. Two years later, Neha’s age will be 30% less than Priya’s age. What is Neha’s current...
At a family event, the present ages of Mira and Junaid are in the ratio of 2:5. Moreover, Imran is 7 years younger than Mira. Twelve years ago, Imran's ...
Rishi's current age is 56.25% greater than Dimple's current age. In four years, Dimple will be 20 years old. Selina is 5 years younger than Rishi, while...
The edge length of a regular tetrahedron is 10 cm. What is its volume?
The present age of A is 7/5 times to that of his marriage age. Present age of his brother is 1/2nd of his present age. If A was married 20 years ago the...
Relevant for Exams:
