Question

Mr. George is walking while wearing a 50-pound backpack. He walked 3 1/4 miles before taking a break. He then walked an additional 2 2/5 miles. How many miles did he walk in all?

Answer 1

Answer:
`5 (13)/(20)\ \text{miles}`

Explanation:

Given

George walks
`3 (1)/(4)` before taking break

then he walks additional
`2 (2)/(5)` miles

total distance walked

`\Rightarrow 3 (1)/(4)+2 (2)/(5)=(12+1)/(4)+(10+2)/(5)\\\Rightarrow (13)/(4)+(12)/(5)=(13* 5+12* 4)/(20)\\\Rightarrow (113)/(20)=5 (13)/(20)\ \text{miles}`