A) 630
B) 430
C) 621
D) 421
Correct Answer: C
Solution :
[c] Length of room = 6.75 m = 675 cm Breadth of room = 5.75 m = 575 cm Square tiles are to be used to pave the room. The side of the square (tile) must be a factor of both length & breadth of the room \[\therefore \] HCF of 675 and 575 = 25 cm \[\therefore \] \[No\,\,o\text{f}\,\,tiles=\frac{Area\,\,o\text{f}\,\,room}{Area\,\,o\text{f}\,\,\text{one tile}}\] \[No\,\,o\text{f}\,\,tiles=\frac{675\times 575}{25\times 25}=621\]You need to login to perform this action.
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