The average of a group of men is increased by 5 years when a person aged of 18 years is replaced by a new person of aged 38 years. How many men are there in the group?
Answer: 4
Explanation
Let member be = x
Increased average = x*5
Given Condition:
x*5=38-18
x= 4
This question appeared in
Past Papers (3 times)
FIA Inspector Past Papers (1 times)
FIA Past Papers (1 times)
FPSC Past Papers (1 times)
This question appeared in
Subjects (2 times)
MATHS MCQS (2 times)
Related MCQs
- The average age of 11 players of cricket team is decreased by 2 months when two of them aged 17 years and 20 years are replaced by two new players. The average age of the new players is?
- The average age of seven persons in a group is 30 years. The average age of five person of this group is 32 years. What is the average age of the other two persons in the group?
- How many calories does a child aged 12 to 14 years need daily?
- When setting boundaries for children aged 5 years, adults should:
- How can the practitioner best help a child aged 3 years to settle into the home-based setting?
- The average age of group of 13 boys is 13. When two boys are joined group. The average rose by 2 years the sum of ages to 2 new boys is?
- Three years ago, the average age of a family of 5 members was 17 years. A baby having been born and the average age of the family is the same as three years ago. The present age of the baby (in years) is _____?
- The average age of 15 students of a class is 15 years. Out of these, the average age of 5 students is 14 years and that of the other 9 students is 16 years. The age of the 15th student is____________?
- Saleem is 3 years older than Shahzad, Shahzad is 4 years older than Behzad, Sohail is 2 years older than Behzad. Who is the youngest in the group?
- Four years ago the average age of A, B and C was 25 years. Five years ago the average of B and C was 20 years. A’s present is?
