Answer:
6 hours
Step-by-step explanation:
So we use benchmarks (easier numbers like 1/4, 1/2, 3/4, 1, etc they can also be in decimals like 0.25, 0.5, 0.75, 1). How? Rounding.
1 2/3 rounded 2
1/4 rounded 1/2
2 3/4 rounded 3
1/3 rounded 1/2
1/2 doesn't need to be rounded 1/2
2 + 3 = 5
1/2 + 1/2 = 1
5 + 1 = 6
6 + 1/2 = 6 1/2
Which one is closest? 6 hours