# How many tiles of diamensions 22.5cm, 10cm and 7.5cm can be painted if the paint is juct sufficient for the surface area 2812.50 cmÂ²?

The number of tiles that can be pointed =

$\frac{Total surface Area} {T.S.A of one tile} \\$

number of tiles n =

$\frac{2812.50}{2 \times (22.5 \times 10)\times (10 \times 7.5) \times (7.5 \times 22.5)}$

n = 3

Hence, number of tiles that can be  pointed = 3

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