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Question

<p class="MsoNormal"><span><span><span>1.<span>&#160;&#160;&#160;&#160;&#160; </span></span></span><span>Lily scored 20% for her homework in Week One and 52% for her homework in Week Two.<span>&#160; </span>Since the number of problems in Week Two is 5 times of the number of problems in Week One, the teacher gave a weight of 1 to Week-One score and a weight of 5 to Week-Two score.<span>&#160; </span>What is Lily&#8217;s weighted average score?<span>&#160; </span></span></span></p>

Explanation / Answer

Week one score is worth 1 and week two score is worth 5, which means the total is worth 6. Week one she got a 20%, so .2*1 = .2 and week two she got a 52%, so .52*5 = 2.6 Adding them together and dividing by the total score of 6, should give you her weighted average score.

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