Question

Three measuring rods are 45 CM, 50 cm and 75 cm in length what is the least length in metres of a rope that can be measured by the full length of each of these three rods

Answer 1

hey there!!

The main motto behind this question is to find the LCM, only then, the number we found out could me measurable by all the three lengths. Hope you get it.

LCM = 450

So, the least length in meters of a rope that can be measured by full lengths of each of the three rods is 450 meters!

Hope my answer helps! ^_^

Answer 2

Answer :

We need to find the LCM of 45, 50 and 75 in order to find the length of a rope that can be measured by the full length of each of the three rods.

Now,

45 = 3 × 3 × 5

50 = 2 × 5 × 5

75 = 3 × 5 × 5

So, LCM (45, 50, 75)

= 2 × 3 × 3 × 5 × 5

= 450

Therefore, the required length of the rope be 450 cm

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