Quiz Discussion

The average age of husband and his wife was 23 years at the time of their marriage. After five tears they have a one-year old child. The average age of the family of three, when the child was born, was-

Course Name: Quantitative Aptitude

  • 1] 23 years
  • 2] 24 years
  • 3] 18 years
  • 4] 20 years
Solution
No Solution Present Yet

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# Quiz
1
Discuss

The average age of a class is 15.8 years. The average age of the boys in the class is 16.4 years while that of the girls is 15.4 years. What is the ratio of boys to girls in the class?

  • 1]

    1:2

  • 2]

    2:3

  • 3]

    3:4

  • 4]

    3:5

Solution
2
Discuss

The average of the first 100 positive integers is-

  • 1] 49.5
  • 2] 50.5
  • 3] 51
  • 4] 100
Solution
3
Discuss

There are 30 students in a class. The average age of first 10 students is 12.5 years. The average age of the remaining 20 students is 13.1 years. The average age (in years) of the students of the whole class is :

  • 1] 12.5 years
  • 2] 12.7 years
  • 3] 12.8 years
  • 4] 12.9 years
Solution
4
Discuss

The average age of 30 students of a class is 14 years 4 months. After admission of 5 new students in the class the average becomes 13 years 9 months. The youngest one of the five new students is 9 years 11 months old. The average age of the remaining 4 new students is :

  • 1] 10 years 4 months
  • 2] 12 years 4 months
  • 3] 11 years 2 months
  • 4] 13 years 6 months
Solution
5
Discuss

If the arithmetic mean of 0, 5, 4, 3 is a, that of -1, 0, 1, 5, 4, 3 is b and that of 5, 4, 3 is c, then the relation between a, b, and c is

  • 1] a = b = c
  • 2] a : b : c = 3 : 2 : 4
  • 3] 4a = 5b = c
  • 4] a + b + c = 12
Solution
6
Discuss

The average weight of 8 men is increased by 1.5 kg when one of the men, who weight 65 kg is replaced by a new man. The weight of the new man is-

  • 1] 70 kg
  • 2] 74 kg
  • 3] 76 kg
  • 4] 77 kg
Solution
7
Discuss

When the average age of a couple and their son was 42 years, the son married and got a child after one year. When the child was 5 years old, the average age of the family became 36 years. What was the age of daughter-in- law at the time of their marriage ?

  • 1] 23 years
  • 2] 24 years
  • 3] 25 years
  • 4] 26 years
Solution
8
Discuss

The average age of 30 students is 9 years. If the age of their teacher is included, the average age becomes 10 years. The age of the teacher (in years) is :

  • 1] 27
  • 2] 31
  • 3] 35
  • 4] 40
Solution
9
Discuss

Average of two numbers is 8 and average of other three numbers is 3; the average of the five numbers is :

  • 1] 2
  • 2] 3
  • 3] 5
  • 4] 6
Solution
10
Discuss

The frequency distribution data is given below. If the average age is 17 years, the value of m is

  • 1] 1
  • 2] 2
  • 3] 3
  • 4] 4
Solution
# Quiz