Question

the value of 2+5+8.......up to 10 terms
(1)145
(2) 135
(3)155
4(175)
​

Answer 1

a= 2

d = 5-2

= 3

so,

n= 10

nth term= a+(n-1) d

= 2 +(10-1)3

= 2 + 27

= 29

so,

sum of numbers = (n/2)× (a+nth term)

=( 10/2) ×(2+29)

= 5 × 31

= 155

so, (3)155 is the right option

Answer 2

Answer:

hey mate

2+5+8+11+14+17+20+23+26+29= 155

so the answer is (3) 155

hope it will help you