Home › IBPS RRB › Reasoning › series_coding_relations › Odd natural numbers 1, 3, 5, and so on have nth …
Odd natural numbers 1, 3, 5, and so on have nth term:
A2n minus 1
B2n plus 1
Cn minus 1
Dn plus 1
Answer & Solution
Correct answer: A. 2n minus 1
1. Put n equal to 1 to get 1.
2. Put n equal to 2 to get 3.
3. The rule is 2n minus 1.
_Source: NCERT Class 11 Mathematics, Chapter 8, Sequences and Series._
Related questions
Inserting two numbers between 3 and 81 so the sequence is a G.P. gives:Rs 500 deposited at 10 percent compounded annually grows each year by a constant ratio of:30 bacteria double every hour. After 2 hours there are:If A and G are the A.M. and G.M. of two positive numbers, which is never smaller?Between 1 and 256 the real values of r that work are:Inserting three numbers between 1 and 256 to form a G.P. gives r to the fourth equal to:The geometric mean of two positive numbers a and b is:Over ten generations, a person's ancestors sum to 2046, computed using the sum formula of