Question
If a person walks 25% more than of his usual speed,
reaches his distance 90 minutes before. If the destination is 495 km away, then the usual speed of a person is (in km/hr)?Solution
Let the usual speed be x km/hr New speed = 125% of x = 5x/4 km/hr Distance = 495 km According to the question 495/x – 495/(5x/4) = 90/60 495 x [(5 – 4)/5x] = 3/2 Therefore, x = 495 x (1/5) x (2/3) = 66 km/hr
Ratio of the present ages of Jack and Kevin is 7:m respectively. Five years hence from now, the sum of the ages of Jack and Kevin will be 55 years. Six ...
- 5 years from now, the ratio of ages of Asha and Kiran will be 3:4 respectively. The total of their current ages is 95 years. What is the difference in thei...
- Three years ago, the ratio of ages of 'S' and 'T' was 7:8. Seven years from today, their ages will be in the ratio 9:10. What is the present age of 'R', wh...
The current age ratio of A to B is 9:8. The ratio of A’s age 12 years later to B’s age 15 years earlier is 2:1. If C’s present age is 50% less tha...
A is younger than B by 4 years. If the ratio of A and B ages is 5:7 respectively, then find the age of A.
The ratio of age of Rohit 8 years ago to the age of Anjali 8 years hence is 5:9. If the average of their present ages is 36 years, what is the differenc...
The present age of ‘T’ is 36 years, which is 50% more than that of ‘U’. The average of present ages of ‘U’ and ‘V’ is 42 years. The pres...
Four years back, the ratio of Rohan and Neha’s ages was 9:10. Twelve years from now, their ages will be in the ratio 11:12. What is Neha’s current a...
The ratio of the present ages of P and Q is 6:5 respectively. If the age of P 10 years hence from now will be 100% more than the age of Q 4 years ago fr...
Currently, the ages of Vikesh and Vishal are in a ratio of 7:5. Vijay's age is 20% lower than Vishal's. If the average age of Vikesh, Vishal, and Vijay ...
Relevant for Exams:
