The nth term is a formula that enables us to find any term in a sequence. The ‘n’ stands for the term number. For example to find the 10th term we would follow the formula but substitute 10 instead of ‘n’. If the nth term = 2n + 1. To find the first term we substitute n = 1 into the nth term.
What is the formula for finding the nth term in a sequence?
Step 1: The nth term of an arithmetic sequence is given by an = a + (n – 1)d. So, to find the nth term, substitute the given values a = 2 and d = 3 into the formula. Step 2: Now, to find the fifth term, substitute n = 5 into the equation for the nth term.
How do you find the number of series?
It is based on either descending or ascending order of numbers and each successive number is obtained by dividing or multiplying the previous number by a specific number. Example:4, 36, 324, 2916? Sol:4 x 9 = 36, 36 x 9 = 324, 324 x 9 = 2916, 2916 x 9 = 26244.
How are questions based on Missing numbers asked?
Questions based on missing number are asked in various competitive exams under Verbal Reasoning, which mainly consists of figures divided in different orders. In the middle of this sequence are numbers, letters and the given figures are in a series.
How to find the Missing numbers in a number line?
Example 2: Find the missing number in the following number line: 1, 3, 9, 15, 25,? , 49. This is because all the sequence of numbers are squares and (squares – 1) alternatively like 7 square = 49. Therefore, the number line will be 1, 3, 9, 15, 25, 35, 49.
Are there any missing number problems in SSC exams?
Most of the students face difficulty while solving missing number problems in competitive exams. These Missing Number questions asked often in SSC and the competitive exams. So, students should practice these missing number problems with answers for SSC or Bank Exams.
