Nth Term of AP
Finding Nth Term when an AP is Given
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 | |||
For an AP the first term and the common difference are 41 and - 41 respectively the | |||
| Right Option : C | |||
| View Explanation | |||
Determine the number of terms in the A.P.3,7,11,...407. Also ,find its 20th term from the end . | |||
| Right Option : B | |||
| View Explanation | |||
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