Average Practice Question and Answer

Q:

If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55 and 60, then the average marks of all the students is?

605 0

  • 1
    54.68
    Correct
    Wrong
  • 2
    53.33
    Correct
    Wrong
  • 3
    55
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "54.68 "
Explanation :

Q:

12 kg of rice costing 30 per kg is mixed with 8 kg of rice costing 40 per kg. The average per kg price of mixed rice is

583 0

  • 1
    35
    Correct
    Wrong
  • 2
    34
    Correct
    Wrong
  • 3
    38
    Correct
    Wrong
  • 4
    37
    Correct
    Wrong
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Answer : 2. "34"
Explanation :

Q:

The average weight of five persons sitting in a boat is 38 kg. The average weight of the boat and the persons sitting in the boat is 52kg. What is the weight of the boat?

615 0

  • 1
    232 kg
    Correct
    Wrong
  • 2
    242 kg
    Correct
    Wrong
  • 3
    228 kg
    Correct
    Wrong
  • 4
    122 kg
    Correct
    Wrong
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Answer : 4. "122 kg "
Explanation :

Q:

The average of the marks obtained in an examination by 8 students was 51 and by 9 other students was 68. The average marks of all 17 students was: 

2335 0

  • 1
    59
    Correct
    Wrong
  • 2
    59.5
    Correct
    Wrong
  • 3
    60
    Correct
    Wrong
  • 4
    60.5
    Correct
    Wrong
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Answer : 3. "60"
Explanation :

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Answer : 2. "3185"
Explanation :

Q:

The average salary, per head, of all the workers of an institution, is Rs. 60. The average salary of 12 officers is Rs. 400; the average salary, per head, of the rest is Rs. 56. The total number of workers in the in situation is 

1227 0

  • 1
    1032
    Correct
    Wrong
  • 2
    1020
    Correct
    Wrong
  • 3
    1030
    Correct
    Wrong
  • 4
    1035
    Correct
    Wrong
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Answer : 1. "1032 "
Explanation :

Q:

The average salary, per head, of all the workers of an institution is 60. The average salary of 12 officers is 400; the average salary, per head, of the rest is 56. The total number of workers in the institution is -

460 0

  • 1
    1030
    Correct
    Wrong
  • 2
    1035
    Correct
    Wrong
  • 3
    1020
    Correct
    Wrong
  • 4
    1032
    Correct
    Wrong
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Answer : 4. "1032"
Explanation :

Q:

A man purchased 7 bags of rice at the rate of  ₹ 800 each, 8 bags of rice at ₹ 1000  each and 5 bags of rice at the rate of  ₹ 1200 each. What is the average cost of one bag of rice?

409 0

  • 1
    ₹ 1000
    Correct
    Wrong
  • 2
    ₹ 980
    Correct
    Wrong
  • 3
    ₹ 1120
    Correct
    Wrong
  • 4
    ₹ 1050
    Correct
    Wrong
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Answer : 2. "₹ 980"
Explanation :

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