Answer the following:

The length of a rectangular hall is 4 metres less than 3 times the breadth of the hall. What is the length, if the breadth is b metres?


According to the question,


We know that,


The breadth of the rectangular hall is b metres


Therefore,


Length of the rectangular hall = 3 × breadth – 4


l = (3 × b) – 4


l = 3b – 4


Hence,


The length will be 3b – 4


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