Question

Kapil and his two friends went on a hiking trip they started from a place 3600 m high they climed 3120 m and reached to the top of hill. then they walked 300 m on the hill range at the same level again they climb down to a valley 1560 m from the top of the hill range after walking another 400 m at this level, they climbed up for about 820 m and camped. at what height did they pitch the camp

Answer 1

the place where they pitched the camp is 5980m high

Answer 2

3600+3120=6720m-1560m=5160
5160+820=5980m