Question

A kite which is flying at a height of 215 metres above the ground level descends at a rate of 5 metre per minute. find the height from the ground after 30 minutes?

Answer 1

$5 \times 30 = 150$
$215 - 150 = 65$
So the answer is 65m

Answer 2

he is flying at 215 metres above the ground
it descends at 5m/min
after 30 min he will descends upto 30×5=150metres
he will be found in height from ground is 215-150=65 metres