Question

A student cannot start from his house towards his school before a fixed time. If he walks at a speed of 5 km h^–1, he reaches his school 15 minutes late. If he increases his speed by 1 km h^–1, he still reaches the school 5 minutes late. For how mutch maximum time should he walk to reach his school ?

Answer 1

Answer:

i dont know

Step-by-step explanation: