Quiz Discussion

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 ?

Course Name: Quantitative Aptitude

  • 1] 23 years
  • 2] 24 years
  • 3] 25 years
  • 4] 26 years
Solution
No Solution Present Yet

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# Quiz
1
Discuss

If the average of 5 consecutive integers is x then, find the average of next to next 5 consecutive integers.

  • 1] x + 5
  • 2] x - 5
  • 3] x + 10
  • 4] x + 25
Solution
2
Discuss

In a family, the average age of a father and a mother is 35 years. The average age of the father, mother and their only son is 27 years. What is the age of the son?

  • 1] 10 years
  • 2] 10.5 years
  • 3] 11 years
  • 4] 12 years
Solution
3
Discuss

A batsman makes a score of 87 runs in the 17th inning and thus increases his average by 3. Find his average after 17th inning.

  • 1]

    40

  • 2]

    39

  • 3]

    52

  • 4]

    55

Solution
4
Discuss

If the arithmetic mean of 7, 5, 13, x and 9 is 10, then the value of x is :

  • 1] 10
  • 2] 12
  • 3] 14
  • 4] 16
Solution
5
Discuss

The average sale of car dealership was 15 cars per week. After a promotional scheme the average sale increased to 21 cars per week. The percentage increased in the sale of cars was-

  • 1]

    39.33%

  • 2]

    40%

  • 3]

    \(42\frac{6}{7}\)%

  • 4]

    140%

Solution
6
Discuss

The average of six number is x and the average of three of these is y. the average of the remaining three is z, then 

  • 1]

    x=y+z

  • 2]

    2x=y+z

  • 3]

    x=2y+2z

  • 4]

    x=2yz

Solution
7
Discuss

30 pens and 75 pencils altogether were purchased for Rs. 510. If the average price of a pencil was Rs. 2, what was the average price of a pen ?

  • 1] Rs. 9
  • 2] Rs. 10
  • 3] Rs. 11
  • 4] Rs. 12
Solution
8
Discuss

The average age of 24 boys and their teacher is 15 years. When the teacher's age is excluded, the average age decreases by 1 year. The age of the teacher is :

  • 1] 38 years
  • 2] 39 years
  • 3] 40 years
  • 4] 41 years
Solution
9
Discuss

The average of 6 numbers is 7. The average of three numbers of them is 5. What will be the average of remaining numbers?

  • 1] 15
  • 2] 30
  • 3] 9
  • 4] 42
Solution
10
Discuss

The average age of the boys in a class is 16 years and that of the girls is 15 years. The average age for the whole class is-

  • 1] 15 years
  • 2] 15.5 years
  • 3] 16 years
  • 4] Cannot be computed with the given information
Solution
# Quiz