Question

1+2+3+4+5+6+7+8+9+10

Answer 1

Hi mate !!!

it's sum = n (n+1)/2

n is no. of terms

n= 10

10(11)/2


55

Have a great time dear..

Answer 2

sum of n terms of AP when last term is given
n/2(a+l)
n=10

10/2(1+10)

5×11

55 is the answer

$<marquee>Hope it helps you$