nimrahm2006 nimrahm2006

25-11-2020
Mathematics

contestada

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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murphygavin7039 murphygavin7039

25-11-2020

Answer:

9 would be removed i believe

Step-by-step explanation:

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lovelycamtu299 lovelycamtu299

25-11-2020

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

Answer Link

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