Q57. Which of the following expressions is equivalent to 1 / (20 × 19 × 18 × 17)?Mathematics — NUST Mock 10 — Question 57 of 200A. 20! / 16!B. 16! / 20!C. 1 / 16!D. 20!Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →