Progressions – Aptitude MCQ Questions – 06 Posted on July 9, 2020July 9, 2020 by admin Question 1If k, 2k – 1 and 2k + 1 are three consecutive terms of an AP, the value of k is A. -2 B. 3 C. -3 D. 6 Question 2 The common difference of the A.P. 1/2b, 1−6b/2b, 1−12b/2b, . . . . . is A. 2b B. -2b C. 3 D. -3 Question 3If the nth term of an A.P. is 2n + 1, then the sum of first n terms of the A.P. is A. n(n - 2) B. n(n + 2) C. n(n + 1) D. n(n - 1) Question 4Let S denotes the sum of n terms of an A.P. whose first term is a. If the common difference d is given by d = Sn – k Sn-1 + Sn-2 then k = A. 1 B. 2 C. 3 D. None of these Question 5The first and last terms of an A.P. are 1 and 11. If the sum of its terms is 36, then the number of terms will be A. 5 B. 6 C. 7 D. 8 Question 6The common difference of an A.P., the sum of whose n terms is Sn, is A. Sn - 2Sn - 1 + Sn - 2 B. Sn - 2Sn - 1 - Sn - 2 C. Sn - Sn - 2 D. Sn - Sn - 1 Question 7If in an A.P., Sn = n2p and Sm = m2p, where S denotes the sum of r terms of the A.P., then Sp is equal to A. 1/2p3 B. mnp C. p3 D. (m + n)p2 Question 8Two A.P.’s have the same common difference. The first term of one of these is 8 and that of the other is 3. The difference between their 30th terms is A. 11 B. 3 C. 8 D. 5 Question 9The number of terms of the A.P. 3, 7, 11, 15, ....... to be taken so that the sum is 406 is A. 5 B. 10 C. 12 D. 14 Question 10If the sum of n terms of an A.P. be 3n2 + n and its common difference is 6, then its first term is A. 2 B. 3 C. 1 D. 4