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The average of six numbers is x and the average of three is y. If the average of the remaining three is z, then :

Created: 6 years ago | Updated: 3 years ago

Updated: 3 years ago

x=y+z

x=2y+2z

2x=y+z

none of these

Janata Bank Ltd Janata Bank Ltd - Asst. Executive Officer - 23.01.2015 গণিত গড় (Average)

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Best Ans:

Hints: Average of 6 numbers = x

sum of 6 numbers = 6x

Average of the 3 numbers = y

sum of the 3 numbers = 3y

Average of the remaining 3 numbers = z

sum of the remaining 3 numbers = 3z

Now, we know that 6x = 3y + 3z

2x = y + z

6 years ago

0 0

Md Azizur Rahman

Founder of Satt

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