Question

11. Rob and two of his friends are diggingholes at Rob's house in order to plant somenew trees. The holes need to be at least 3 feet14deep. So far, Rob's hole is5feet, Sam's is2.6 feet, and Tom's is 2 feet. Who is theclosest to being finished?

Answer 1

Let's compare who is about to finish his hole:

Rob = 14/5 feet

Sam = 2.6 feet

Tom = 2 1/8 feet

Solution:

1. We need to convert the depth of the holes on a common scale. The easiest one is decimals. So let's convert the depths of the holes of the three friends to decimals, as follows:

Rob : 14/5 = 2.8

Sam : 2.6

Tom : 2 1/8 = (8 * 2 + 1)/8 = 17/8 = 2.125

Now, we see that Rob's hole has the highest depth and it is the closest to 3.

Rob is the closest to being finished.