Question

An airplane flies with a constant speed of 680 km/h. How far can it travel in 30 minutes?

Answer 1

Answer:

$speed = d \div t \: \\ therefore \: d = speed \times t \\ here \: speed = \: 680km \: per \: hour \\ time = 30 \: minutes = 1 \div 2 \: hours \\ therefore \: d = 1 \div 2 \times 680 = 340 \\ 340 \: is \: th \: answer$