Question

4. Solve:
1 Katsu is a truck driver. He
travels at an average speed
of 80 km/h and covers
certain distance in
3h20min.At what average
speed should he travel to
cover the same distance in
2h40min.​

Answer 1

Resposta:

100 km/h

Explicação:

80 km/h in 3h20min (or 200min)

x in 2h40min (or 160min)

This variables are inversely proporcional, so:

80 ------ 200

x ------ 160

160x = 80 . 200

160x = 16000

x = 100 km/h