Question

The length of rectangular hall is 4 meters less than 3 times the breadth of the hall if the breadth is 5 m then find the length of the hall

Answer 1

Step-by-step explanation:

Ex 11.4, 1 (b) The length of a rectangular hall is 4 meters less than 3 times the breadth of the hall. What is the length, if the breadth is b meters? Given that, Breadth of the hall = b m. Now, Length of the hall = = 3 × b − 4 = 3b − 4 ∴ Length of hall = (3b − 4) metres

Answer 2

Answer:

Length of the hall=11m

Step-by-step explanation:

Let length be l.

breadth=5m.

Given: l=3*breadth-4m

           l=3*5-4

           l=15-4

           l=11m

Therefore length of the hall= 11m