Traditional Culture Encyclopedia - Photography major - On the right is the consciousness map of the swimming pool to be renovated in Red Star Hotel. Workers should spread cement on each side and stick it on it, which is 4 meters long.

On the right is the consciousness map of the swimming pool to be renovated in Red Star Hotel. Workers should spread cement on each side and stick it on it, which is 4 meters long.

[(20+ 15)×2×2+20× 15]÷0.4×0.4

=[35×4+300]÷0. 16

=440÷0. 16

= 2750 (block)

[(20+ 15)×2×2+20× 15]×5

=440×5

=2200 kg

A: The boss needs to buy 2750 such tiles; We also need to buy 2200 kilograms of cement.