Differences: +1, +3, +5, +7, +9, +11. Next difference is 11, so 29 + 11 = 40
Q.135Medium
Find next term: 9, 10, 12, 15, 19, 24, 30, ?
Answer: C
Differences: +1, +2, +3, +4, +5, +6, +7. Next difference is 7, so 30 + 7 = 37
Q.136Medium
Complete the series: 5, 7, 11, 19, 35, ?, 131
Answer: A
Pattern: Each term is obtained by doubling the previous term and subtracting a decreasing value. 5→7 (+2), 7→11 (+4), 11→19 (+8), 19→35 (+16), 35→67 (+32). The differences are powers of 2.
Q.137Medium
Find the next term: 3, 5, 9, 17, 33, 65, ?
Answer: B
Pattern: Each term is 2 times the previous term plus 1. 3→2(3)+(-1)=5, 5→2(5)-1=9, 9→2(9)-1=17, 17→2(17)-1=33, 33→2(33)-1=65, 65→2(65)-1=129.
Q.138Medium
In a certain code, MOTHER is written as RMOTEH. How is SISTER written in that code?
Answer: B
In MOTHER→RMOTEH: positions are rearranged as 6,1,3,4,5,2. Applying same pattern to SISTER (6 letters): S(6)→R, I(1)→S, S(3)→I, T(4)→S, E(5)→E, R(2)→T = RSISET
Q.139Medium
PAINT is coded as QCMOU in a certain code. What is the code for GRAIN?