Question

A mountain climber starts a climb at an elevation of 453 feet above sea level. At his first rest stop he has climbed 162 feet, and by his second rest stop he has climbed another 207 feet. It's getting late in the day, so the climber starts his way down. If the climber descends 285 feet, how much does he need to ascend or descend to return to the original starting?

A ascend 78 feet
B descend 78 feet
C descend 84 feet
D ascend 84 feet

Answer 1

C. descend 84 feet

Explanation:

pretend his starting point is zero then:

+162+207 = 369

then 369 - 285 = 84

we are now 84 ft above our starting point so be must descent 84 ft to reach it.