Question

A red ribbon of length 30 cm and a white ribbon of length 42 cm are to be cut into small pieces of equal length. Find the greatest possible length of each small piece.​

Answer 1

Answer:

The answer is 6.

Step-by-step explanation:

The greatest possible length of each small piece will have to be less than the two numbers. So, it will be their HCF. The HCF of the two numbers 42 and 30 is

2|42 2|30

3|21 3|15

7 5

:. their common factors are 2 and 3, so the HCF is 3×2=6

Answer 2

Answer:

The answer is 6.