Which greatest possible length can be used to measure exactly 15 meter 75 cm, 11 meter 25 cm & 7 meter 65 cm ?
A. 45
B. 255
C. 55
D. 36
Answer : A. 45
Explanation:
The HCF for given length.
–> 15 meter 75 cm = 1575 cm.
–> 11 meter 25 cm = 1125 cm
–> 7 meter 65 cm = 765 cm.
1575 = 5 * 5 * 3 * 3 * 7
1125 = 5 * 5 * 5 * 3 * 3
765 = 5 * 3 * 3 * 17
HCF of 1575 , 1125 and 765 is 45.
