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Word of the Day
strenuous
Definition: (adjective) requiring energy and strength.
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Math Teaser
Problem
If y is 45 percent of x and z is 25 percent of x , what is y + z in terms of x ?
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SAT* Tip of the Day
So What?
Not all schools require the SAT for admission.
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PSAT: Grid In Question #1

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Question: A year ago, Tom and Al each deposited $1,000 in separate investment accounts. Tom's account earns 5% every year. Al's account earns 2.5% every six months. What is the difference (in dollars) between Tom's and Al's accounts today?


The correct answer is .63.

After one year, Tom has: $1,000 + (.05)(1,000) = $1,050. After one year, Al has: $1,000 + (.025)(1,000) + (.025)(1025) = $1,050.63. This makes the difference between two accounts: $1,050.63 - $1,050 = $0.63.

 
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