Question
A total journey of 250 km is completed by Ravi partly by
boat at 25 km/h and the remaining by train at 50 km/h. If the whole trip took 6.5 hours, find the distance covered by Ravi by boat.Solution
ATQ,
Let the distance covered by boat be ‘d’ km.
Distance by train = (250 - d) km
So, (d/25) + [(250 - d)/50] = 6.5
Take LCM of 25 and 50 = 50
Multiply both sides by 50:
=> 2d + (250 - d) = 325
=> 2d + 250 - d = 325
=> d + 250 = 325
=> d = 325 - 250
=> d = 75
Therefore, Ravi travelled 75 km by boat.
Amit age after 16 years will be 2 times his age 2 years back. What is the present age of Amit?
In a family a couple has a son and a daughter. The age of the father is four times that of his son and age of her daughter is half of her mother. The wi...
A’s age is 120% of what he was 4 years ago, But 60% of what it will be after 4 years. What is his present age?
The ratio of present ages of 'X' and 'Y' is 4:9, respectively. The difference between the ages of 'X' and 'Y' is 25 years. If the present age of 'Z' is ...
After 12 years, "Aman" will be three times as old as he was 20 years ago. The age difference between "Aman" and "Bhanu" in twelve years will be 4:5, res...
The present ages of a mother and her daughter are in the ratio 5 : 2. Four years ago, their ages were in the ratio 3 : 1. What will be the mother’s ag...
The sum of the ages of C and D after 10 years will be 100 years. If the ratio of their present ages is 9:7, find the difference between their ages.
The average age of the husband, wife, and their child 4 years ago was 24 years and that of the husband and the child 5 years ago was 19 years. The pres...
- At present, the total age of Sohan and Rohan is 60 years. Five years back, the ratio of their ages was 2:3. What is Rohan’s current age?
Three years ago from now, age of 'A' was ____ years. Ratio of present ages of 'A' and 'B' is ____ respectively and two years hence from now, sum of age...
Relevant for Exams:
