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# One pen costs \$0.25 and one marker \$0.35. At those prices,

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One pen costs \$0.25 and one marker \$0.35. At those prices, [#permalink]  05 Jan 2017, 01:56
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One pen costs \$0.25 and one marker \$0.35. At those prices, what is the total cost of 18 pens and 100 markers ?

\$=

[Reveal] Spoiler: OA
100

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Re: One pen costs \$0.25 and one marker \$0.35. At those prices, [#permalink]  09 Jan 2017, 13:45
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Explanation

Multiplying \$0.25 by 18 yields \$4.50, which is the cost of the 18 pens; and multiplying \$0.35 by 100 yields \$35.00, which is the cost of the 100 markers. The total cost is therefore 4 dollars fifty cents, plus, thirty five dollars, plus, thirty nine dollars and fifty cents. Equivalent decimals, such as \$39.5 or \$39.500, are considered correct. Thus, the correct answer is \$39.50 (or equivalent).

Note that the dollar symbol is in front of the answer box, so the symbol \$ does not need to be entered in the box. In fact, only numbers, a decimal point and a negative sign can be entered in the answer box.
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Re: One pen costs \$0.25 and one marker \$0.35. At those prices,   [#permalink] 09 Jan 2017, 13:45
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