the length of a rectangualr hll is 5 m more than its breadth . the area of the hall is 750 m . the length of the hall is
solution let the length = xmetres . then length = ( x + 5 ) metres . then , x ( x + 5 ) = 750 = x ² + 5 x - 750 = 0 ( x + 30 ) ( x - 25 ) = 0 x = 25 . answer c
subtract(divide(add(sqrt(add(multiply(750, const_4), power(5, const_2))), 5), const_2), 5)