Question

If p : q = r : s , s = 4p² and 2qr = 64, then find the value of 2p + 3s

• A. 48
• B. 36
• C. 50
• D. 52

Answer 1

Answer:

D. 52

p : q = r : s ⇒ ps = qr p × 4p² = 64/2 4p³ = 32/4 = 8 p = 2 s = 4 × 2² = 16 2p + 3s = 2 × 2 + 3 × 16 = 4 + 48 = 52