Question

If the price of petrol is increased by Rs. 5 per litre, on gets 2 litres less petrol spending Rs. 1320. What is the increases price of the petrol ?

Answer 1

Answer:

increased price of patrol is Rs60

Step-by-step explanation:

xy=1320

(X+5)(y-2)=1320=xy

5y-2x=10

5y-2640/y= 10

y²-2y-528=0

{2+-✓(4+2112)}/2

y=24 lit and x=Rs55