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1988 AJHSME Problems/Problem 3

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Problem

\frac{1}{10}+\frac{2}{20}+\frac{3}{30} =

\text{(A)}\ .1 \qquad \text{(B)}\ .123 \qquad \text{(C)}\ .2 \qquad \text{(D)}\ .3 \qquad \text{(E)}\ .6

Solution

Each of the fractions simplify to \frac{1}{10}, so this sum is \begin{align*}\frac{1}{10}+\frac{1}{10}+\frac{1}{10} &= \frac{3}{10} \\&= .3 \rightarrow \boxed{\text{D}}\end{align*}

See Also

1988 AJHSME (Problems • Resources)
Preceded by
Problem 2 		Followed by
Problem 4
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25
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Looking for a challenging algebra text? Preparing for MATHCOUNTS or the AMC exams?
Check out Art of Problem Solving's Introduction to Algebra by Richard Rusczyk.
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