This is the basic and conceptual question from real numbers chapter in which we have given the length and breadth of a room and we have been asked to find the required number of square tiles for paving the room.
Kindly solve the above problem in detail
RS Aggarwal, Class 10, chapter 1B, question no 23
Given, length =15 m 17 cm=1517 cm
and width =9 m 2 cm=902 cm
Area of ceiling =(1517×902)
or, Aceiling=1368335 cm2.
The dimension of square tile required to pave the ceiling =HCF of {1517,902}=41
Area of tile =1681 cm2
Number of square tile required =Aceiling/Aone tile=(1368334/1681)= 814