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Speed of the first train = [180/15] m/sec = 12 m/sec Speed of the second train = [180/30] m/sec = 6 m/sec Speed = (12 + 6) m/sec = 18 m/sec Required time = (180 + 180)/18 sec = 20 sec
The present age of A is 4 years more than the present age of B. 5 years ago, A's age was twice that of B. What are the present ages of A and B?
Sum of the present ages of A, B, C and D is 40 years. After 3 years ratio of their ages is 5:3:2:3. What is C’s present age?
If the total ages of A and B is 6 years more than the total age of B and C. C is how many years younger than A?
P's current age is 27 years. After 5 years, Q's age will be