Determine the quantity supplied when price per litre is N30?

Given that the prices and quantities supplied in litres of petrol is expressed as Qs = 25 + 0 25P.Qs is the quantity supplied and P is price. Determine the quantity supplied when price per litre is N30

A. 50litres
B. 32.5litres
C. 30litres
D. 35litres

Correct Answer:

Option B – 32.5 litres

Explanation

Qs = 25 + 0.25p
= 25 + 0.25(30) = 25 + 7.5
= 32.5litres