Question

18. The length of a rectangular hall is 5 m more than its
breadth. The area of the hall is 750 m². The length of the
hall is :
s.
1) 15 m 2) 22.5 m
3) 25 m * 4) 30 m​

Answer 1

Answer:

4) 30m

Step-by-step explanation:

Let b of hall= x

Length of hall= x+5

Area of hall= l*b

750= x2+5x

X2+5x-750=0

X2 +30 x -25x-750=0

X(x+30)-25(x+30)=0

X-25= 0

X+30=0

X =25

X=30