Find Common Difference when First Term, Number of Terms and Sum of N Terms is Given
Find Common Difference when First Term, Number of Terms and Sum of N Terms is Given
Find The Common Difference When First Term, Number of Terms and Sum of N Terms is given:
In these type of problems we will use the formula
will find the value of d ( Common Difference) by substituting the value of a (the first term), n(number of terms) and ( Sum of n term) in the equation.
For Example: Find the common difference of an AP whose first term is -3 number of terms is 15 and sum is 60
Solution:
Substituting the value of a, n,
7= 7d
d= 1
What will be the common difference of the Arithmetic Progression, whose sum of first m terms is given by | |||
| Right Option : B | |||
| View Explanation | |||
If the sum of the first 6 terms of an AP is 456 and its first term is 16, its common difference is _______________
| |||
| Right Option : D | |||
| View Explanation | |||
If the sum of the first 6 terms of an AP is 480 and its first term is 35, its common difference is ________________ | |||
| Right Option : C | |||
| View Explanation | |||
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