Quiz Discussion

The average (arithmetic mean) of 330, 360 and 390 is :

Course Name: Quantitative Aptitude

  • 1]

    \({3^{27}} + {3^{57}} + {3^{87}}\)

  • 2]

    \({3^{29}} + {3^{59}} + {3^{89}}\)

  • 3]

    \({3^{60}}\)

  • 4]

    \({3^{177}}\)

Solution
No Solution Present Yet

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# Quiz
1
Discuss

Find the average of all prime numbers between 30 and 50.

  • 1]

    37.8

  • 2]

    38.9

  • 3]

    39.8

  • 4]

    42.8

Solution
2
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
3
Discuss

Distance between two stations A and B is 778km. A train covers the journey from A to B at 84 km per hour and returns back to A with a uniform speed of 56 km per hour. Find the average speed of train during the whole journey.

  • 1]

    60 km/hr

  • 2]

    30.5 km/hr

  • 3]

    57 km/hr

  • 4]

    67.2 km/hr

Solution
4
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
5
Discuss

A set A consists of integers 27, 28, 30 and 33. If integer k is included in the set, the average of set A will increase by 30%. What is the value of integer k ?

  • 1] 68
  • 2] 79
  • 3] 73.75
  • 4] 75.25
Solution
6
Discuss

In a set of three numbers, the average of first two numbers is 2, the average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers?

  • 1] 2
  • 2] 2.5
  • 3] 3
  • 4] 3.5
Solution
7
Discuss

Find the average of all the numbers between 6 and 34 which are divisible by 5 -

  • 1] 18
  • 2] 20
  • 3] 24
  • 4] 30
Solution
8
Discuss

In 2011, the arithmetic mean of the annual incomes of Ramesh and Suresh was Rs. 3800. The arithmetic mean of the annual incomes of Suresh and Pratap was Rs. 4800, and the arithmetic mean of the annual incomes of Pratap and Ramesh was Rs. 5800. What is the arithmetic mean of the incomes of the three?

  • 1] Rs. 4000
  • 2] Rs. 4200
  • 3] Rs. 4400
  • 4] Rs. 4800
Solution
9
Discuss

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?

 

  • 1] 74%
  • 2] 75%
  • 3] 69%
  • 4] 72%
Solution
10
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
# Quiz