The sum of the first twenty-five natural numbers starting from 10 is?
- 475
- 595
- 550
- None of these
Explanation
Calculating the Sum
The first 25 natural numbers starting from 10 are 10, 11, ..., 34.
This is an arithmetic series with first term a = 10, last term l = 34, and number of terms $n = 25.
Using the Formula for the Sum of an Arithmetic Series
Sn = n/2 (a + l)
= 25/2 (10 + 34)
= 25/2 × 44
= 25 × 22
= 550
Related MCQs
- 3/5, 1/2, 2/3, 3/4
- 1/2, 3/5, 2/3, 3/4
- 1/2, 2/3, 3/5, 3/4
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 1/3
- 1/4
- 1/2
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 2,800
- 3,500
- 2,100
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 4/5
- 7/8
- 11/12
- 5/6
اس سوال کو وضاحت کے ساتھ پڑھیں
