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Quiz Discussion

Five years ago, the average age of P and Q was 25. The average age of P, Q and R today is 25. Age of R after 5 years will be :

Course Name: Quantitative Aptitude

  • 1] 15 years
  • 2] 20 years
  • 3] 40 years
  • 4] 35 years
Solution
No Solution Present Yet

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1
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David obtained 76, 65, 82, 67 and 85 marks (out of 100) in English, mathematics, physics, chemistry and biology. What are his average marks?

  • 1] 65
  • 2] 69
  • 3] 75
  • 4] None of these
Solution
10
Discuss

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?

 

  • 1] 3
  • 2] 4
  • 3] 5
  • 4] 6
  • 5] 7
Solution
2
Discuss

A librarian purchased 50 storybooks for his library. But he saw that he could get 14 books more by spending Rs. 76 more but per book average becomes Rs. 1 less. The average price (in Rs.) of each book he bought, was :

  • 1] 15
  • 2] 25
  • 3] 20
  • 4] 10
Solution
3
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
4
Discuss

The mean weight of 34 students of a school is 42 kg. If the weight of the teacher be included, the mean rises by 400 grams. Find the weight of the teacher (in kg.)

  • 1] 55 kg
  • 2] 57 kg
  • 3] 66 kg
  • 4] 56 kg
Solution
5
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
6
Discuss

The average expenditure of a man for the first five months is Rs. 1200 and for the next seven months is Rs. 1300. If he saves Rs. 2900 in that year, his monthly average income is-

  • 1] Rs. 1500
  • 2] Rs. 1600
  • 3] Rs. 1700
  • 4] Rs. 1400
Solution
7
Discuss

A cricketer scored some runs in his 21st innings, as a result, his average runs increased by 3. If the present average run is 40, how many runs he scored in the final innings?

  • 1] 103
  • 2] 100
  • 3] 85
  • 4] 82
Solution
8
Discuss

a, b, c, d, e, f, g are consecutive even numbers. j, k, l, m, n are consecutive odd numbers. The average of all the numbers is :

  • 1]

    3(a+n2)
  • 2]

    (1+d2)
  • 3]

    (a+b+m+n4)
  • 4]

    3(j+c+n+g4)
Solution
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An elevator can carry maximum of 16 passengers with an average weight of 80 kg. However, four boys more than the maximum carrying capacity of the elevator entered it making the average weight as 86 kg and overloading the elevator. What is the average weight of those four boys ?

  • 1] 112 kg
  • 2] 108 kg
  • 3] 110 kg
  • 4] 98 kg
Solution
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