Question

The surface water in a swimming pool forms a rectangle of length 40 m and breadth 15m. The depth
of water increases uniformly from 1.2m at one end to 2.4m at the other end. The volume (in m) of
water in the pool is :
[Harayana NTSE Stage-1 20131​

Answer 1

Answer:

Volume of water in the pool

= 40 × 15 × (1.2+2.42)

= 1080 cubic metre

Answer 2

Answer:

1180 m³

Step-by-step explanation:

I hope you understood the 3D shape I made .

So ,

Volume of cuboid = 40×15×1.2m³ = 720m³

Volume of rest figure = Area of triangle × Breadth =(40×1.2÷2) × 15 = 360 m³

Total volume = 720 + 360 = 1180 m³

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