 Hello friends, welcome to the session. I'm going to help you solve the problem. That is an army contingent of 616 numbers is to march behind an army van of 32 numbers in a parade The two groups are to march in the same number of columns. What is the maximum number of columns in which they can? March, so let's start with the solution as we all know that by Euclid's division C equal to DQ plus R from question we see that C equal to 616 and D equal to 32 as we all know that C should always be more than D now we'll apply the vision lemma 616 and 32 this gives us 616 divided by 32 We get 19 as a question and 8 as a reminder Here we see that R equal to 8. It is not equal to 0. This implies that we'll apply division lemma 32 8 we get When 32 is divided by 8 We get 4 as a question and 0 as a reminder Here we see that R equal to 0 this implies D equal to 8 is the Hcf of 616 and 32 columns in which the two groups can marches 8. Hope you understood the solution and enjoyed the session. Goodbye and take care