Question
The current ages of P and Q are
in the ratio of 8:5. The ratio of P's age seven years ago to Q's age ten years from now is 5:6. What will be P's age 8 years from now?Solution
ATQ, Let the present ages of 'P' and 'Q' be‘8p’ years and ‘5p’ years respectively. According to question, (8p – 7)/(5p + 10) = 5/6 48p – 42 = 2p + 50 23p = 92 p = 4 So, the present age of 'P' = 8 × 4 = 32 years Age of 'P' after eight years = 32 + 8 = 40 years
A train passes an electrical pole in 14 seconds and passes a platform 360 m long in 50 seconds. Find the length of the train.
Two individuals, X and Y, travel from point P to point Q at different speeds. X takes 10 hours to complete the journey, while Y takes 12 hours. The diff...
A train is travelling at the rate of 108 km/hr. How many seconds it will take to cover a distance of 3/5 km?
- Bus 'X' and Bus 'Y' start together from a station heading in the same direction. Bus 'X' moves at 18 km/h while Bus 'Y' moves at 30 km/h. Determine the dis...
A person travels 240 km partly by car and partly by train. He spends 2 hours more traveling by train than by car. The speed of the car is 60 km/h, and t...
John travelled a total distance of 432 km. He covered 5/8 of this distance at a constant speed of 30 km/h. To complete the entire journey in 13.5 hours,...
- Two buses, ‘D’ and ‘E’, started from cities ‘A’ and ‘B’ towards each other at the same time. When they met after 10 hours, bus ‘E’ had ...
A boy goes to school at 6 km/Hr and return at a speed of 5 km/hr. If he takes 11 hrs in all. Find the distance from his village to school?
A train running at a speed of 72 km/h crosses another train running in the opposite direction at 54 km/h in 12 seconds. The length of the first train is...
A man is travelling at a speed of 60 km/h such that he will take 80 minutes to reach his destination. But after completing half the journey, the man too...
