Nadia walked 18 kilometers, which was twice as far as Hannah walked. How many kilometers did the two girls walk in total?
Hannah = (1/2) 18 = 9
9 + 18 = <<9+18=27>>27 km
Together they walked 27 kilometers.
#### 27
Solve the following math word problem.

### Instruction:
Nadia walked 18 kilometers, which was twice as far as Hannah walked. How many kilometers did the two girls walk in total?

### Response:
Hannah = (1/2) 18 = 9
9 + 18 = <<9+18=27>>27 km
Together they walked 27 kilometers.
#### 27
Solve the following math word problem.

### Instruction:
Nadia walked 18 kilometers, which was twice as far as Hannah walked. How many kilometers did the two girls walk in total?

### Response:
