The length of a rectangualr hll is 5m more than its breadth. The area of the hall is 750 m. The length of the hall is
Choose the correct choice from the following choices:
A) 15 m
B) 22.5 m
C) 25 m
D) 30 m
E) none

Rationale: 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
Answer: C