Subject
Quantitative Aptitude
Topic
Average
The average of six numbers is x and the average of three of these is y. If the average of the remaining three is z, then :
The average of six numbers is x and the average of three of these is y. If the average of the remaining three is z, then :
ক)
x = y + zখ)
2x = y + zগ)
3x = 2y - 2zঘ)
none of theseExplanation
Total of all 6 numbers = 6 × x = 6x Total of the first 3 numbers = 3 × y = 3y Total of the remaining 3 numbers = 3 × z = 3z So, 6x = 3y + 3z Now divide both sides by 3: 2x = y + zRelated questions
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