(1)Harry Potter und der Stein der Weisen (Sa): Die Jubiläumsausgabe

(1)Harry Potter und der Stein der Weisen (Sa): Die Jubiläumsausgabe

Matematika Nicho drove his car at a speed of 56 km/h for 2 h 30 min.
He then drove another 44 km.
He took 4 h altogether to complete the whole journey.
Find Nicho's average speed for the whole journey.
O 8.6 km/h
O 25 km/h
O 28.3 km/h
O 46 km/h​

Nicho drove his car at a speed of 56 km/h for 2 h 30 min.
He then drove another 44 km.
He took 4 h altogether to complete the whole journey.
Find Nicho's average speed for the whole journey.
O 8.6 km/h
O 25 km/h
O 28.3 km/h
O 46 km/h​

Jawaban:

1st trip:

Distance = 2 hr 30 min × 56 km/h

= 2,5 × 56

= 140 km

2nd trip: 44 km

Total time: 4h

Average speed = (140+44) km / 4 h

= 184/4

= 46 km/h

Nicho's average speed for the whole journey is 46 km/h