Question

Three pieces of timber , 42-m ,49-m , and 63-m long ,have to be divided into planks of the same length . what is the greatest possible length of each plank?

Answer 1

Answer:Hi mate

Step-by-step explanation:

Greatest possible length of each plank = HCF of all no.'s

                                                                 = HCF of 42 m, 49 m, 63 m

                                                                 = 7 m

Therefore, the largest possible length of each plank is 7 m.