No of Army Contingent Members= 616
No of members in Army Bands= 32
Situation Given---> Columns should be equal and maximum in number.
The situation can be found out by finding the HCF of number 616 and 32 .
By Euclid's division lemma,
616=32*19+8
32=8*4+0
Since remainder equal 0 at this step . HCF of 616 and 32 is 8.
Required Answer--> The maximum number of columns in which they can march is 8 columns.