What is the difference between the sixth and the fifth terms of the sequence 2,4,7---- whose nth term is n+2n-1?
A
3
B
6
C
16
D
17
Correct Answer: 17
n তম পদ n + 2n - 1 সুতরাং 5 তম পদ 5 + 25 - 1 = 5 + 24 = 5 + 16 = 21 এবং ৬ষ্ঠ পদ 6 + 26 - 1 = 6 + 25 = 6 + 32 = 38 এদের পার্থক্য 38 - 21 = 17