Question : Find the greatest possible length (in metres) that can be used to exactly measure the lengths 6 m, 5 m 25 cm and 12 m 50 cm.
Option 1: 0.25 m
Option 2: 0.75 m
Option 3: 0.90 m
Option 4: 0.35 m
Correct Answer: 0.25 m
Solution :
To find the greatest possible length that can be used to exactly measure the lengths 6 m, 5 m 25 cm, and 12 m 50 cm.
6 m = 600 cm
5 m 25 cm = 525 cm
12 m 50 cm = 1250 cm
The highest common factor (HCF) of 600, 525, and 1250 is 25 (in cm).
1 m = 100 cm
Hence, the correct answer is 0.25 m
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