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In a group of 20 children, two children have hundred marbles each and three do not possess any marbles. The average number of marbles with the rest of the children is 40. What is the average number of marbles with the group of children?
  • a)
    35
  • b)
    30
  • c)
    40
  • d)
    37
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
In a group of 20 children, two children have hundred marbles each and ...
2 children have 200 marbles in total.
3 don't have marbles.
total students=20.
no. of the rest of the children= 15.
average marbles for these 15 children given as=40.
thus total marbles this 15 children=40x15=600.
total marbles=600+200=800.
average=800/20=40
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Community Answer
In a group of 20 children, two children have hundred marbles each and ...
Total number of marbles with the children = (100 × 2) + (40 × 15) + (3 × 0)  = 800.
Average number of marbles with the children = Total number of marbles/Total number of children = 800/20 = 40
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In a group of 20 children, two children have hundred marbles each and three do not possess any marbles. The average number of marbles with the rest of the children is 40. What is the average number of marbles with the group ofchildren?a)35b)30c)40d)37Correct answer is option 'C'. Can you explain this answer?
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