Question

Sally is going shopping with her friend Susan at the mall, which is located 10 kilometers away from her house. She drives half-way to the mall and then realizes she forgot her purse at home. She immediately turns around, goes back home to get her purse, and then drives directly from her house to the mall. What is the total distance that Sally traveled?

Answer 1

20 km

Step-by-step explanation:

Answer 2

Total distance between Sally's house and mall = 10 kilometers

Distance covered during half way drive =
`(10)/(2)` Kilometers

Now, she goes back to her home.

Distance covered going back home =
`(10)/(2)` Kilometers

Now, she drives from home to mall.

Distance covered from Sally's home to mall = 10 kilometers

Hence, the total distance Sally traveled = 5 + 5 + 10

Total distance Sally traveled = 20 kilometers

Hence, the answer is 20 kilometers