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November 27, 2014

November 27, 2014

Posted by **Eva** on Friday, November 17, 2006 at 8:55pm.

Suppose Orlando's batting average at the ened of the season is 30% How many hits did he get during the earlier part of the season?(when his average was 20%)

The total hits in the season was 10, the total at bats was 20

H is hits first part of season

AB is at bats first part of season.

H/AB=.2

or H=.2AB

But at the end,

(10 + H)/(20+AB) = .3

Put the H=.2AB for H in the second equation, and solve for AB. Then solve for H.

I assume that the 10 out of 20 occurred after he had batting practice with his friend. Let X be the number of "at bats" before that. Then

10 + 0.2 X/(20 + X) = 0.3,

the end-of-season batting average. Solve for X.

10 + 0.2 X = 6 + 0.3 X

4 = 0.1 X

X = 40

thanks! very helpful

thanks!

no of hits15 no of times at bat 60

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