206,055 views
10 votes
10 votes
The shortest route from London to Swansea is 180 miles. A lorry is expected to take 4.5 hours to travel this route. The lorry actually travels by a different route which increases the distance by 15%, but it still arrives in 4.5 hours. By how many more mph than the expected speed does the lorry travel?​

User JellyFishBoy
by
2.7k points

1 Answer

28 votes
28 votes

Answer:

6mph

Explanation:

180/4.5=40

180 × (1+15%)=207

207/4.5=46

46-40=6

User Cristian Ceron
by
2.4k points