Question

a driver descends 20 ft in water then rose 12 ft and descend other 18ft.give answer fast,with statement​

Answer 1

Now, the diver descends 20 feet in the water which can be given as -20 feets. Then he rose 12 feet i.e. +12 feets and he descends another 18 feet i.e. -18 feets. Therefore, the man is now at 26 feet below the surface of the lake.