The maximum number of passengers an aeroplane can carry is 300. A profit of ₹1200 is made on each executive class ticket and a profit of ₹800 is made on each economy class ticket. The airline reserves atleast 40 seats for executive class. However, atleast 5 times as many passengers prefer to travel by economy class than by executive class. The maximum profit of the airline is : |
₹2,08,000 ₹2,56,000 ₹2,60,000 ₹2,80,000 |
₹2,60,000 |
The correct answer is Option (3) → ₹2,60,000 $x+y≤300$ $x≥40$ $y≥5x$ Profit, $P=1200x+800y$ Since $y≥5x$, substituting $y=5x$ in $x+y≤300$ $x+y≤300$ $6x≤300$ $x≤50$ Since $x≥40$, $40≤x≤50$ Corresponding values of y, $x=50,y=5(50)=250$ $x=40,y=5(40)=200$ $P(x=50,y=250)=1200(50)+300(250)$ $=₹2,60,000$ |