SSC Selection Post 2022 PYQ — Question 68

SSC Selection Post - Matriculation Level 2022 - 4 Feb 2022 - Shift 1 • Quantitative Aptitude • Q68

What is n if 16, n and 49 are in continued proportion?

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e. 28.

⇒ a/b = b/c ⇒ b2 = a × c

n2 = 16 × 49 = 784 ⇒ n = 784=28 \sqrt{784} = 28