alleryStart learning →Profit is P = -x^2 + 60x - 200. What is the maximum profit?
A900
B700
C1800
D1600
Answer & Solution
Correct answer: B. 700
P' = -2x + 60 = 0 gives x = 30, and P(30) = -900 + 1800 - 200 = 700.
Keep practising Basic Differential and Integral Calculus
Browse all Basic Differential and Integral Calculus questions for CA Foundation, or explore more Quantitative Aptitude topics.
Related questions
For a straight line y = ax + b, the derivative dy/dx isThe derivative of ln(x^2 + 1) isWhat is d/dx of 5e^x?If f'(x) > 0 throughout an interval, then f isA global extremum of a function is taken overMaxima and minima are known together asAt a critical point where f'' is positive, the function has aThe function f(x) = x^3 - 3x has a local maximum at x =