Question

sum of 1st 30 natural numbers??

Answer 1

The sum of the first 30 natural number is- 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30 = 465

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Answer 2

Answer:

Sum of 1st 30 natural numbers is 465.

Step-by-step explanation:

• 1st 30 natural numbers can be written as 1,2,3,4,5,........,30

• To find the sum S of the first n terms of an arithmetic sequence we can use the formula, S=n(a1 + an)/2,

       where n is the number of terms in the series , a1 is the first term and

        an is the last term.

• Using the above formula we can calculate the sum S of first 30 natural numbers. Here first term a1= 1 ,   last term an= 30, number of terms n= 30.

          Hence, sum S= 30(1+30)/2 = 15×31 = 465