A rock climber climbs a hill at the rate of 3 m/s. If he starts climbing from 20 m above the ground surface, how much time will he take to climb the hill which is 200 m in height?
(3 Marks)

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Solution

Rate at which climber climbs the hill = 3 m/s

Total distance to be climbed by the climber = 200 m - 20 m = 180 m
(1 mark)

Time taken by the climber to climb

$= \frac{180}{3}$
(1 mark)

= 60 seconds
(1 mark)

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A rock climber climbs a hill at the rate of 3 m/s. If he starts climbing from 20 m above the ground surface, how much time will he take to climb the hill which is 200 m in height? (3 Marks)

Rate at which climber climbs the hill = 3 m/s Total distance to be climbed by the climber = 200 m - 20 m = 180 m (1 mark) Time taken by the climber to climb =1803 (1 mark) = 60 seconds (1 mark)

A rock climber climbs a hill at the rate of 3 m/s. If he starts climbing from 20 m above the ground surface, how much time will he take to climb the hill which is 200 m in height?
(3 Marks)

Rate at which climber climbs the hill = 3 m/s

Total distance to be climbed by the climber = 200 m - 20 m = 180 m
(1 mark)

Time taken by the climber to climb

$= \frac{180}{3}$
(1 mark)

= 60 seconds
(1 mark)