Finding Nth Term When an AP is Given:To find the nth term we will use the formula for the nth term of an AP.
Example: Find the 10th term of the AP : 2, 7, 12,.....
Solution : Here, and .
as
So the common difference = 5
We have
So,
Therefore , the 10th term of the given AP is 47.
Example: A person invested a sum of Rs 500. After each month 50 Rs are added to the sum. How much money he get after 6 months?
Solution: As Rs 50 are being added each month so the common difference = 50
Fisr term
n= 6
If an AP has its first term 2 and common difference 5, which of following strings of numbers represents the next four terms of the AP? | |||
Right Option : D | |||
View Explanation |
If an AP has its first term -5 and common difference 1, which of the following strings of numbers represents the next four terms of the AP? | |||
Right Option : C | |||
View Explanation |
An AP has first term 7 and common difference 6. Which of the following strings of numbers represents the next four terms of the AP? | |||
Right Option : D | |||
View Explanation |
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