# Lake contains 1200 cubic metre of water, then the depth lake is :

If the length of a lake is 40 m and breadth is 10 m. Lake contains 1200 cubic metre of water, then the depth lake is

- 4 m
- 3.5 m
- 3 m
- 4.5 m

**Answer: (3) 3 m **

**Explanation:-**

Let the depth of the lake be X m

**Given- **length = 40 m & breadth = 10 m

**Formula – **

The volume of the lake = l x b x h

Where, l = length of the lake, b = breadth of the lake & h = height of the lake

Then, 40 x 10 x h = 1200

h = 1200/400

h = 3 m

Then, the depth of the lake is 3 m.

Hence, the answer is (3) 3 m.

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