Q75. In an Arithmetic Progression (A.P.), if the first term (a) is 20, the common difference (d) is 7, and the n-th term (Tn) is 69, what is the number of terms (n)?Mathematics — NUST Mock By Dogers 6 — Question 75 of 200A. 8B. 2C. 89D. 90Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →