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here are 5 cards: 2,5,7,8,9. one of the cards is removed and then mean average is 6. which card was removed
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4 votes
here are 5 cards: 2,5,7,8,9. one of the cards is removed and then mean average is 6. which card was removed

User Nikita Ryanov
by
5.4k points

2 Answers

3 votes

Answer:

9 would be removed i believe

Explanation:

User Michael Vaquier
by
5.4k points
6 votes
The card 7 should be remove.

Explain:
Assuming X is the total of 4 cards
X/4=6 => X=24
2+5+8+9=24
=> (2+5+8+9)/4=6
User Telewin
by
5.9k points
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