Question

An old road was 3.9 miles long. After a renovation it is 7.8 miles long. How many times as long is the road after the renovation than before?

Answer 1

It will be 2 times
3.9x2=7.8
3+3=6
0.9+0.9=1.8
6+1.8=7.8

Answer 2

2 times. 3.9x2=7.8

Explanation:

3+3=6

0.9+0.9=1.8

6+1.8=7.8