Problem: a rectangular field has area equal to 150 sq m and perimeter 50 m . its length and breadth must be ? 
Options: ['a ) 15 m , 15 m', 'b ) 15 m , 90 m', 'c ) 16 m , 10 m', 'd ) 15 m , 10 m', 'e ) 15 m , 30 m']
d