Find the least number of square tiles required to pave the floor of a room 15…
2016
Find the least number of square tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad.
Answer: C. 814 — First, convert dimensions to cm: 15 m 17 cm = 1517 cm and 9 m 2 cm = 902 cm. To find the least number of square tiles, maximize tile size by finding HCF(1517,…
- A.
902
- B.
800
- C.
814
- D.
None of these
Attempted by 8 students.
Show answer & explanation
Correct answer: C
First, convert dimensions to cm: 15 m 17 cm = 1517 cm and 9 m 2 cm = 902 cm.
To find the least number of square tiles, maximize tile size by finding HCF(1517, 902) = 41 cm.
Number of tiles = (1517/41) × (902/41) = 37 × 22 = 814.
Loading lesson…