Question

an airplane flies 598 km in 4 hours 59 minutes what is its average speed in kilometers per hour

Answer 1

Answer:

d=598

time=4h59min

$= 4\frac{59}{60} h \\ = \frac{299}{60}$

$avr \: speed = \frac{d}{t} \\ = \frac{598}{ \frac{299}{60} } \\ = 598 \times \frac{60}{299} \\ = 120km h ^{ - 1}$