Question

(2) Find the sum of all even numbers between 1 and 150.​

Answer 1

Answer:

a=2

d=2

tn=150

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

Sn=1/2(2+(150-1)2)

Sn=1/2×(2+(149)2)

Sn=1/2×(2+298)

Sn=1/2×300

Sn =150

Therefore, sum of all even numbers between 1 and 150 =150

Answer 2

Answer:

The solution is provided in the above picture.

Hope u get it

Happy new year.