Quiz Discussion

Students of three different classes appeared in common examination. Pass average of 10 students of first class was 70%, pass average of 15 students of second class was 60% and pass average of 25 students of third class was 80% then what will be the pass average of all students of three classes?

 

Course Name: Quantitative Aptitude

  • 1] 74%
  • 2] 75%
  • 3] 69%
  • 4] 72%
Solution
No Solution Present Yet

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# Quiz
1
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
2
Discuss

The average marks of four subjects is 120. If 33 was misread as 13 during the calculation, what will be the correct average?

 

  • 1] 122
  • 2] 120
  • 3] 125
  • 4] 121
Solution
3
Discuss

There are five boxes in cargo hold. The weight of the first box is 200 kg and the weight of the second box is 20% higher than the weight of the third box, whose weight is 25% higher than the first box's weight. The fourth box at 350 kg is 30% lighter than the fifth box. Find the difference in the average weight of the four heaviest boxes and the four lightest boxes.

  • 1] 51.5 kg
  • 2] 75 kg
  • 3] 37.5 kg
  • 4] 112.5 kg
  • 5] None of these
Solution
4
Discuss

The average marks obtained by a class of 60 students is 65. The average marks of half of the students is found to be 85. The average marks of the remaining students is :

  • 1] 35
  • 2] 45
  • 3] 55
  • 4] 65
Solution
5
Discuss

Ajay working in a Cellular company as a salesman. His monthly salary is Rs. 200. But he gets bonus as per given rule. If he sells sim cards of Rs. X then his bonus will be   . In the first quarter of the year his average sale was Rs. 3000 per month. In the next 5 five month his average sale was Rs. 5000 per month and for next four month his average sale was Rs. 8000 per month. What is the average earning per month for the whole year?

 

  • 1] Rs. 3350
  • 2] Rs. 3610
  • 3] Rs. 3750
  • 4] Rs. 3560
  • 5] None of these
Solution
6
Discuss

A school has only four classes that contain 10, 20, 30 and 40 students respectively. The pass percentage of these classes are 20%, 30%, 60% and 100% respectively. Find the pass % of the entire school.

  • 1] 56%
  • 2] 76%
  • 3] 34%
  • 4] 66%
  • 5] None of these
Solution
7
Discuss

The average of 20 students is 12 years, if the teacher's age is included, average increases by one. The age of the teacher is:

  • 1] 30 years
  • 2] 33 years
  • 3] 28 years
  • 4] 35 years
Solution
8
Discuss

The average monthly income of P and Q is Rs. 5050. The average monthly income of Q and R is Rs. 6250 and the average monthly income of P and R is Rs. 5200. The monthly income of P is-

  • 1] Rs. 3500
  • 2] Rs. 4000
  • 3] Rs. 4050
  • 4] Rs. 5000
Solution
9
Discuss

A student finds the average of 10, 2 digits numbers. If the digits of one of the numbers interchanged, the average increases by 3.6. The difference between the digits of the 2 digits number is :

  • 1] 4
  • 2] 3
  • 3] 2
  • 4] 5
Solution
10
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
# Quiz