Solve the following:- Share with your friends Share 0 Anand Kumar Pandey answered this Dear Student, Please find below the solution to the asked query: Note: In your question, it will be 15 rather than 16. In solid square, soldiers will be across the area of the square and in hollowsquare, they will be along perimeter of the square.Let 'n' be the number of soldiers in the front row when arranged in a square.Hence total number of soldiers=4×n=4n ..........iThe number of soldiers in the front row when arranged in solid square=n-15⇒The total number of soldiers=n-15n-15=n-152⇒The total number of soldiers=n2-30n+225 .............iiBy first and second n2-30n+225=4n⇒n2-30n-4n+225=0⇒n2-34n+225=0⇒n2-25n-9n+225=0⇒nn-25-9n-25=0⇒n-9n-25=0Hencen=25 or n=9But n=9 is not possible as n-15 will be negative.Hence n=25total number of soldiers=4n=4×25=100 Answer Regards -1 View Full Answer