Quiz Discussion

The average weight of 47 balls is 4 g. if the weight of the bag (in which the balls are kept) be included; the calculated average weight per ball increases by 0.3 g. What is the weight of the bag?

Course Name: Quantitative Aptitude

  • 1] 14.8 g
  • 2] 14.4 g
  • 3] 15 g
  • 4] 18.6 g
  • 5] None of these
Solution
No Solution Present Yet

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1
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The average of the first five multiples of 9 is:

 

  • 1] 20
  • 2] 27
  • 3] 28
  • 4] 30
Solution
2
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The average weight of 21 boys was recorded as 64 kg. If the weight of the teacher was added, the average increased by 1 kg. What was the teacher’s weight?

  • 1] 86 kg
  • 2] 64 kg
  • 3] 72 kg
  • 4] 84 kg
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3
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Sachin Tendulkar has a certain average for 11 innings. In the 12th innings he scores 120 runs and thereby increases his average by 5 runs. His new average is :

  • 1] 60
  • 2] 62
  • 3] 65
  • 4] 66
Solution
4
Discuss

The average of runs scored by a cricketer in his 99 innings is 99. How many runs will he have to score to his 100th innings so that his average of runs in 100 innings will become 100 ?

  • 1] 100
  • 2] 99
  • 3] 199
  • 4] 101
Solution
5
Discuss

The average score of a class of boys and girls in an examination is A. The ratio of boys and girls in the class is 3 : 1. If the average score of the boys is A + 1, the average score of the girls is-

  • 1] A - 1
  • 2] A - 3
  • 3] A + 1
  • 4] A + 3
Solution
6
Discuss

The average monthly salary of 660 workers in a factory is Rs. 380. The average monthly salary of officers is Rs. 2100 and the average monthly salary of the other workers is Rs. 340. Find the number of other workers.

 

  • 1] 645
  • 2] 650
  • 3] 640
  • 4] 642
Solution
7
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In a boat there are 8 men whose average weight is increased by 1 kg when 1 man of 60 kg is replaced by a new man. What is weight of new comer?

 

  • 1] 70 kg
  • 2] 66 kg
  • 3] 68 kg
  • 4] 69 kg
Solution
8
Discuss

The average age of 40 students of class is 18 years. When 20 new students are admitted to the same class, the average age of the students of the class is increased by 6 months. The average age of newly admitted students is ?

  • 1] 19 years
  • 2] 19 years 6 months
  • 3] 20 years
  • 4] 20 years 6 months
Solution
9
Discuss

The average of five numbers is 7. If three new numbers would be added, then the new average comes out to be 8.5. What is the average of those three new numbers ?

  • 1] 9
  • 2] 10.5
  • 3] 11
  • 4] 11.5
Solution
10
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The average of six numbers is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. The average of the remaining two numbers is :

  • 1] 4.6
  • 2] 4.8
  • 3] 4.5
  • 4] 4.7
Solution
# Quiz