Question

A diver descended 20 feet into water from a boat at surface of Lake he then Rose 12 feet and descended another 18 feet at this point .what is his depth in water?

Answer 1

When a diver descends 20 feet, the depth of water here is 20 feet
The diver then ascends 12 feet;
Depth of water = 20 - 12 
                         = 8 feet
The diver then descends another 18 feet
The depth of water here = 8 + 18
                                       = 26 feet

Answer 2

Answer:

26 feet

Step-by-step explanation:

Diver descends into water = 20 feet (Given)

Diver raises into water = 12 feet (Given)

Diver descends into water  = 18 feet(Given)

Initially, the diver is at the surface of the lake,

Thus,  

When the diver descends 20 feet, the depth of water here is 20 feet

The diver then ascends 12 feet;

Hence, the depth of water

= 20 - 12  

= 8 feet

Now, the diver descends another 18 feet

Hence, the depth of water here  

= 8 + 18

= 26 feet

Hence, the final depth in water is 26 feet.