Question
A train takes 52 seconds to cross the 204 m long bridge.
If the same train takes 18 seconds to cross a board, then tell the length of the train. (In meters)Solution
Let the length of the train be x m. Length of the bridge = 204 m As we know, Speed = Distance/time (x + 204)/52 = x/18 18x + 3672 = 52x 52x18x = 3672 34x = 3672 x = 3672/34 x = 108 The length of the train is 108 m.
Present ages of 'P' and 'Q' are in ratio 5:6, respectively. If ten years hence from now, age of 'P' will be 25% less than that of 'Q', then find the rat...
Twelve years ago, the age ratio between 'A' and 'B' was 5:4. In five years, their average age is expected to be 44 years. Determine 'A’s age eight yea...
The current ages of P and Q are (x + 5) years and (x – 3) years respectively. If the ratio of the present age of P to the age of Q 3 years hence is 6:...
Four years ago from now, the ages of 'A' and 'B' were in the ratio 7:5, respectively. Ten years ago from now, the ages of 'A' and 'B' were in the ratio...
The average age of A, B, and C is 36 years. A is 2 years older than B and B is 2 years older than C. What is the age of A?
What is the value of 'x' such that, given their current ages are in a 3:7 ratio, 'x' years ago, the ratio of 'Adarsh' and 'Malik's ages was 1:3, and if ...
A’s age is 140% of what he was 5 years ago, But 70% of what it will be after 5 years. What is his present age?
The current age ratio of Rahul to Sakshi is 3:2. Additionally, the ratio of Rahul’s age five years ago to Sakshi’s age ten ye...
- Karan is 4 years older than Tarun, and Tarun is 6 years younger than Naman. If 3 years later, the ratio of Karan’s age to Naman’s age will be 7:8, find...
Eight years ago, the ratio of Raman's age to Chaman's age was 4:5. Twelve years from now, this ratio will change to 13:15. Calculate the current average...