Average Practice Question and Answer

Q:

The average weight of A, B, and C is 52 kg. If the average weight of B and C is 44 kg and that of C and A is 46 kg, then what will be the weight of C?

527 0

  • 1
    24 kg
    Correct
    Wrong
  • 2
    38 kg
    Correct
    Wrong
  • 3
    36 kg
    Correct
    Wrong
  • 4
    68 kg
    Correct
    Wrong
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Answer : 1. "24 kg "

Q:

The average weight of three men is increased by 4 kg when one of them, whose weight is 100 kg, is replaced by another man. What is the weight of the new man? 

527 0

  • 1
    107 kg
    Correct
    Wrong
  • 2
    103 kg
    Correct
    Wrong
  • 3
    104 kg
    Correct
    Wrong
  • 4
    112 kg
    Correct
    Wrong
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Answer : 4. "112 kg"

Q:

A factory buys 7 machines. 2 Machine A, 2 Machine B and rest Machine C. Prices of the machines are Rs 95000, Rs 75000 and Rs 43000 respectively. Calculate the average cost of these machines?

516 0

  • 1
    75000
    Correct
    Wrong
  • 2
    65500
    Correct
    Wrong
  • 3
    71000
    Correct
    Wrong
  • 4
    67000
    Correct
    Wrong
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Answer : 4. "67000"

Q:

The average weight of 8 people is increased by 2 kg when a new person comes in place of the person who weighs 50 kg. What is the weight of the newcomer?

505 0

  • 1
    62 kg
    Correct
    Wrong
  • 2
    66 kg
    Correct
    Wrong
  • 3
    64 kg
    Correct
    Wrong
  • 4
    68 kg
    Correct
    Wrong
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Answer : 2. "66 kg "

Q:

4 boys and 3 girls spent Rs. 120 on an average, of which boys spent Rs. 150 on the average. Then the average amount spent by the girls is.

498 0

  • 1
    ₹ 80
    Correct
    Wrong
  • 2
    ₹ 60
    Correct
    Wrong
  • 3
    ₹ 90
    Correct
    Wrong
  • 4
    ₹ 100
    Correct
    Wrong
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Answer : 1. "₹ 80 "
Explanation :

Q:

The average of 11 numbers is 7. If each number is doubled, what will be the new average of the numbers?

493 0

  • 1
    3.5
    Correct
    Wrong
  • 2
    7
    Correct
    Wrong
  • 3
    10.5
    Correct
    Wrong
  • 4
    14
    Correct
    Wrong
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Answer : 4. "14"

Q:

The average of x occurring 5 times and y occurring 7 times is 37. Also, the average of x occurring 7 times and y occurring 5 times is 35. The value of y is:

489 0

  • 1
    45
    Correct
    Wrong
  • 2
    42
    Correct
    Wrong
  • 3
    30
    Correct
    Wrong
  • 4
    27
    Correct
    Wrong
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Answer : 2. "42"

Q:

Average weight of 10 persons is 40 kg. A new person join the group and average weight of 11 persons becomes 42 kg. What will be the weight of new person?

489 0

  • 1
    58 kg
    Correct
    Wrong
  • 2
    60 kg
    Correct
    Wrong
  • 3
    62 kg
    Correct
    Wrong
  • 4
    64 kg
    Correct
    Wrong
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Answer : 3. "62 kg"

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