A school wants to build a cuboid swimming pool, which is 50 meters long, 25 meters wide and 2.5 meters deep. If the tiles of 2 decimeters long are pasted at the bottom and around, at least a few pieces are needed Enough? If you inject 10 cubic meters of water per minute How many hours does it take to make the water depth 1.2 meters?

A school wants to build a cuboid swimming pool, which is 50 meters long, 25 meters wide and 2.5 meters deep. If the tiles of 2 decimeters long are pasted at the bottom and around, at least a few pieces are needed Enough? If you inject 10 cubic meters of water per minute How many hours does it take to make the water depth 1.2 meters?

1. (50 * 25 + 50 * 2.5 + 25 * 2.5) × 2-50 * 25 = 1625 square meters
1625 ÷ (0.2 × 0.2) = 40625 pieces
2. 50 * 25 * 1.2 △ 10 = 150 hours
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The cuboid swimming pool is 50 meters long, 25 meters wide and 2 meters deep. If you paste tiles all around and at the bottom of the swimming pool, how many tiles are needed with a side length of 5 decimeters?

50X25+(50X2+25X2)X2=1550
5X5/100=0.25
1550/0.25=6200

The primary school built a cuboid swimming pool, which is 60 meters long, 25 meters wide and 2 meters deep
How many. Pay attention to the unit

This is the surface area of the cuboid
Surface area of cuboid = (L x W + W x H + L x H) x2
As there is no cover on the top of the pool, there are only five sides
Swimming pool surface area: l x W + (W x H + L x H) x2
=60x25+(60x2+25x2)x2
=1500+340
=1840 (M2)
1840 sq m = 18400000 sq cm
Tile area: 10x10 = 100 square centimeter
18400000 / 100 = 184000 (pieces)
A: 184000 tiles in total
The last expression / is a division sign
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