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The average of five numbers is 6.9. If one of the numbers is deleted, the average of the remaining numbers is 4.4. What is the value of the number deleted?
  1. 6.8
  2. 7.4
  3. 12.5
  4. 16.9
Explanation
  • Total of 5 numbers: 5x 6.9 = 34.5
  • Total of 4 numbers:4×4.4=17.6
  • Deleted number: 34.5 - 17.6 = 16.9

Related MCQs

Sixteen men can complete a work in twelve days. Twenty-four children can complete the same work in eighteen days. Twelve men and eight children started working and after eight days three more children joined them. How many days will they now take to complete the remaining work?
  1. 5 days
  2. 10 days
  3. 4 days
  4. 9 days
اس سوال کو وضاحت کے ساتھ پڑھیں
Twenty-four men can complete a work in sixteen days. Thirty-two women can complete the same work in twenty-four days. Sixteen men and sixteen women started working and worked for twelve days. How many more men are to be added to complete the remaining work in 2 days?
  1. 18 men
  2. 24 men
  3. 36 men
  4. 50 men
اس سوال کو وضاحت کے ساتھ پڑھیں
Find the number of quantities if their sum is 5,200 and their average is 650?
  1. 10
  2. 8
  3. 12
  4. None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Find the average of 5/6, 4/3, 3/4?
  1. 1
  2. 35/36
  3. 38/37
  4. 6/5
اس سوال کو وضاحت کے ساتھ پڑھیں
Reeya obtained 65, 67, 78, 82 and 85 out of 100 in different subjects, what will be the average:
  1. 70
  2. 80
  3. 85
  4. 75
اس سوال کو وضاحت کے ساتھ پڑھیں
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