Aptitude - Area - Discussion
Discussion Forum : Area - General Questions (Q.No. 10)
10.
What is the least number of squares tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad?
Answer: Option
Explanation:
Length of largest tile = H.C.F. of 1517 cm and 902 cm = 41 cm.
Area of each tile = (41 x 41) cm2.
 Required number of tiles = |
 |
1517 x 902 |  |
= 814. |
| 41 x 41 |
Discussion:
56 comments Page 5 of 6.
Sumi said:
1 decade ago
@Shashi. Well said.
To calculate least no.of square we need largest tiles. That means we need to have highest common factor for 1517 & 902.
To calculate least no.of square we need largest tiles. That means we need to have highest common factor for 1517 & 902.
Pradeep said:
1 decade ago
The highest no that can divide both length and breadth so that the tiles used can occupy all the available space exactly.
Suparna said:
1 decade ago
Is there any other easy method to calculate HCF?
Idk said:
1 decade ago
Can anyone explain the logic why HCF is used ?
Valli said:
1 decade ago
What's the reason about using hcf?
Apurv said:
1 decade ago
Least no of square tiles. Mean largest tiles.
Faraz said:
1 decade ago
Here they are telling least number of square tiles not least area of square tile, so we need big tile thats why hcf otherwise we take lcm. I hope you understand least number of tile.
Anbarasu said:
1 decade ago
What is the reason about using hcf?
Praveen said:
1 decade ago
I'm can't understand please explain. How to get the value 41 from the HCF?
SUKUMAR SATYEN said:
1 decade ago
For same type of Questions, we can also use different formula:
Number of Squares inside Rectangle:
= Square of (LCM of Length and Width of Rectangle)/(Area of Rectangle).
= (33374*33374)/(1517*902) = 814.
Number of Squares inside Rectangle:
= Square of (LCM of Length and Width of Rectangle)/(Area of Rectangle).
= (33374*33374)/(1517*902) = 814.
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