1990 AJHSME Problems/Problem 6

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Problem

Which of these five numbers is the largest?

$\text{(A)}\ 13579+\frac{1}{2468} \qquad \text{(B)}\ 13579-\frac{1}{2468} \qquad \text{(C)}\ 13579\times \frac{1}{2468}$

$\text{(D)}\ 13579\div \frac{1}{2468} \qquad \text{(E)}\ 13579.2468$

Solution

The options given in choices $\text{A}$ , $\text{B}$ and $\text{E}$ don't change the initial value (13579) much, the option in choice $\text{C}$ decreases 13579 by a lot, and the one given in choice $\text{D}$ increases 13579 by a lot.

After ensuring that no trivial error was made, we have $\boxed{\text{D}}$ as the answer.

1990 AJHSME (Problems • Resources)
Preceded by Problem 5	Followed by Problem 7
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1990 AJHSME Problems/Problem 6

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