Anita has three pieces of cloth measuring 7 m, 3 m 85 cm and 12 m 95 cm. Working in centimetres, what is the greatest length of a measuring rod (in cm) that can measure all three lengths exactly?
Class 6HCF and LCMPlaying with Numbers
A31
B70
C35
D39
Step-by-Step Solution
Lengths in cm: 700, 385, 1295. HCF: 700=22x52x7,385=5x7x11,1295=5x7x37. Common: 5×7=35 cm.
Answer: C) 35
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