Correct Answer: Option B

Explanation

P : Q : r = 6 : 4 : 5

5 = 6 + 4 + 5

= 15

P = \(\frac{6}{15}\), q = \(\frac{4}{15}\), r = \(\frac{5}{15}\) = \(\frac{1}{3}\)

To find \(\frac{3p - q}{4q + r}\)

3p - q = 3 x \(\frac{6}{15}\) - \(\frac{4}{15}\)

\(\frac{18}{15}\) - \(\frac{4}{15}\) = \(\frac{14}{15}\)

∴ 4q + r = 4 x \(\frac{4}{15}\) + \(\frac{5}{15}\)

\(\frac{16}{15}\) = \(\frac{16}{15}\) + \(\frac{5}{15}\)

= \(\frac{21}{15}\)

\(\frac{14}{15}\) x \(\frac{15}{21}\) = \(\frac{14}{21}\)

= \(\frac{2}{3}\)

• a student was asked to electroplate a stainless steel spoon using a brass rod has the electrode and copper 2... Answer this

  1 Answers   ·   Chemistry   ·   6 hours ago
• what subject does unical offer for aptitude test medicine and surgery? Answer this

  1 Answers   ·   7 hours ago
• pls I need neco biology practical 2024 specimen details and practice questions 🙏? Answer this

  4 Answers   ·   10 hours ago