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+1 vote

Find the minimum number of square tiles required to pave the floor of a room of 3m 25cm long and 2m 50cm broad?

- 144
- 130

- 156
- 168

+2 votes

Given : 3m 25cm long and 2m 50cm broad Room = 325cm and 250cm

Tile size should be of dimension which fit perfectly in room according to dimension ,

$\therefore$ HCF(325,250) = 25

$No \ of \ tiles= \frac{Area \ of \ room}{Area \ of \ tile}$

$No \ of \ tiles$ = $\frac{325*250}{25*25}$ =**130**

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