Question

Find the sum for the first 24 natural numbers in ap

Answer 1

Answer:

300

Explanation:

Here a=1

d=1

n=24

Sn=n/2[2a+(n-1)d]

Sn=24/2[2(1)+(24-1)*1]

Sn=12(2+23)

Sn=12*25

Sn=300

Answer 2

Answer:

Explanation: first 24 natural numbers are- 1,2,3,4,5,6........................24

Here, a=1

L=24

N=24

Now, sum of all 24 terms= n/2(a+l)

= 24/2(1+24)

= 12×25=300

{A= first term

L=last term

N=number of terms}