$Z = px + qy$ , with $p, q > 0$ , takes its maximum at both $(3, 0)$ and $(1, 1)$ . Which relation holds?

p = 2q

Correct answerYour answer

q = 2p

Correct answerYour answer

p = q

Correct answerYour answer

q = 3p

Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer B

Correct answer: B

Worth noting

$p = 2q$ has the two letters the wrong way round; put $(3, 0)$ and $(1, 1)$ in to check.

Ten questions from Linear Programming, at your own pace.

Ten questions from Linear Programming, at your own pace.

Z=px+qyZ = px + qyZ=px+qy, with p,q>0p, q > 0p,q>0, takes its maximum at both (3,0)(3, 0)(3,0) and (1,1)(1, 1)(1,1). Which relation holds?