The problem below is best solved using which strategy?
Pick a number, double it, add 5, double the result, subtract 6, divide by 2. If Mary's answer is 20, what was her beginning number?
A)work backwards
B)make a table or graph
C)act it out
D)solve a simpler problem

Question

Quizplus · Accepted Answer

Working backwards is the best strategy for this problem because we are given the final answer and need to figure out the starting number. By reverse-operating the given steps, we can find the beginning number that leads to the answer of 20.

The Problem Below Is Best Solved Using Which Strategy