Question
"Amit and Bishnu's current ages are in the ratio 4:5.
Chintu's age is 40% more than Amit's age. If Bishnu and Chintu's ages sum up to 106 years, what is Amit's current age?"Solution
ATQ, Let, the present ages of 'Amit' and 'Bishnu' be '20a' years and '25a' years, respectively. So, present age of 'Chintu' = 1.4 × 20a = '28a' years ATQ, 28a + 25a = 106 So, a = (106/53) = 2 So, the present age of 'Amit' = 20a = 20 × 2 = 40 years
The average weight of A, B, C is 76 kg when D joins them the average weight becomes 70 kg. If E whose weight is 2 kg more than D replaces A, then the av...
In a seminar, the average number of male and female attendees is 540. 70% of males and 50% of females are professionals. If there are 588 non-profession...
Out of 6 numbers, the average of first 5 is 19 and last 5 is 20. If the last number is 21. Find the first number?
- The average marks obtained by 20 students in a test is 74. It was later found that 78 was wrongly recorded as 87 and 69 was wrongly written as 63. What is ...
The average age of 3 friends is 24 years. If their ages are in the ratio 3:5:7, find the age of the oldest friend.
- The average number of pencils distributed among five students is 10. If each student received 1 pencil more than the one before him, then find the highest ...
The average of a set of s numbers is 14. If 20 is added to the set, then the average of the set becomes 14.25. Find the value of 3 X (s - 3).
The average of five even numbers is 64. If we replace two of these even numbers, 84 and 92, with a single even number X, the new average decreases by 4....
- The number of students in class 'A' is 108, and the ratio of girls to boys is 5:4. If the average number of boys in classes A and B is 114, and the average...
Three natural numbers are given. If sum of average of any two numbers and the remaining third number is 56, 46 and 50 respectively, then find the sum o...
