Sum of N Terms When First Term, Last Term and Number of Terms are Given
Sum of N Terms When First Term, Last Term and Number of Terms are Given
Sum of All Terms When First Term, Last Term and Number of Terms is Given: The sum can be found by using the formula.
For Example: Find the sum of an AP. whose first term is 30, the last term is 51 and the number of term is 8
a= 30
l= 51
n= 8
If the last term, the number of terms and the sum of all the terms of an AP are 68, 20 and 790 respectively, its first term is ___________ | |||
| Right Option : A | |||
| View Explanation | |||
If the first term, the last term and the sum of all the terms of an AP are 12, 160 and 3268 respectively, the number of terms in the AP is | |||
| Right Option : D | |||
| View Explanation | |||
If the last term , first term and the sum of all terms of an AP are 23, -19, and 30 respectively the number of terms in the AP is ___________ | |||
| Right Option : D | |||
| View Explanation | |||
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