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OpenStudy (moongazer):
The average of X numbers is 5. If Y is added to each number, the average will be?
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OpenStudy (anonymous):
average will be 5+Y
OpenStudy (moongazer):
why??
OpenStudy (anonymous):
the sum of X no. was =5X when u add Y to each no. then the sum is 5X+XY=X(5+Y) so the average is x(5+Y)/Y =5+x
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