Q.3
Boxes that are 6 inches tall are being stacked next to the boxes that are
8 inches tall. What is a shortest height at which the two stacks will be
at the same height?
Answers
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2
Answer:
36 inches.
This is simply a question of finding the LCM, or lowest common multiple, of 18 and 12. One way to solve this problem is taking both numbers, and adding that number to itself a number of times until they both have the same number.
12, 24, 36, 48, 60, 72
18, 36, 54, 72, 90, 108
These are the numbers 12 and 18 listed out after repeating them six times. In these two sets, there are only two numbers that appear in both sets, 36 and 72. The correct answer for this type of problem is 36 simply because it is the first number that both sets share.
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