:Q 1. Find the next number in the sequence: 17,13,9,5,.... (a) 1 (b) 2 (c) 4 (d) 0 (e) 8 :RCA 1. (a) 1 Ans. Note: Each term is formed by subtracting 4 from the preceding term: 5 - 4 = 1 :RA :Q 2. In the sequence, -7,-4,-1,+2,y, find y. (a) 3 (b) 2 (c) 1 (d) 5 (e) 0 :RCD 2. (d) 5 Ans. Add 3 to -7 to get -4; you add 3 to -4 to get -1, etc. Then: y = 2 + 3 = 5 Ans. :RA :Q 3. Find the next term in the sequence 1,2,4,7,11,.... (a) 15 (b) 14 (c) 18 (d) 0 (e) 16 :RCE 3. (e) 16 Ans. Here, the number added to the successive terms changes: It can be seen from this that you should add 5 to 11 to get the next number; 11 + 5 = 16 Ans. :RA :Q 4. Find the next number in the sequence: 27,9,3,1,.... (a) -2 (b) -3 (c) 0 (d) 1/3 (e) -1 :RCD 4. (d) 1/3 Ans. Each term is divided by 3 to get the next term. Therefore, the next term is 1 divided by 3. 1 Ans = - 3 :RA :Q 5. In the sequence, 2,5,4,8,6,11,n, find n. (a) 8 (b) 4 (c) 0 (d) 2 (e) 1 :RCA 5. (a) 8 Ans. The numbers increase and decrease successively, so look for addition followed by subtraction: To follow the pattern, subtract 3 from 11: n = 11 - 3 = 8 Ans. :ET :ET
