Q197. A puzzle contains a row of numbers: 4, 2, 1, ?. If the sum of the numbers in the row must equal 15, which number replaces the question mark?English — NUST Mock By Dogers 3 — Question 197 of 200A. 1B. 4C. 7D. 8Practice more English MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →