Question

When measuring the lengths 7 m, 3 m, 85 cm, 12 m, and 95 cm the greatest possible length would be:?

Answer 1

12 m

because 1 m=100 cm

12 m =1200 cm (greatest of all)

Answer 2

greatest measuring lengths would be HCF of all given nos
7m=700cm, 3m=300cm, 85cm , 12m=1200cm, 95cm

700=2×2×5×5×7

300=2×2×3×5×5

85=5×17

1200=2×2×2×2×3×5×5

95 = 5×19

HCF =5

THE greatest possible length to measure exactly all the given lengths is 5cm