Maths Olympiad Prep

Track / Stage 1 / 49 of 240 #49 of 2444

Problem 49

Algebra Difficulty 1.1 Multiple choice CEMC Pascal · Canada · 2022

The value of 12+24+48+816\dfrac{1}{2}+\dfrac{2}{4}+\dfrac{4}{8}+\dfrac{8}{16}
is

Pick one

Next problem →

Official solution

In the given sum, each of the four fractions is equivalent to
12\dfrac{1}{2}.

Therefore, the given sum is equal to $12+12+12+12\$\dfrac{1}{2} + \dfrac{1}{2} + \dfrac{1}{2} + \dfrac{1}{2} = 2$.

Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty, ordering) added by this project.