Question

Find the following sums:
(a) 1+3+5+.....+99
(b) 2+4+6+.....+100
(c) 3+7+11+......+199​

Answer 1

a.) 90

b.) 88

c.) 178

I don't know

The answers are correct or not . . . . ! ! !

Answer 2

1)97 as in the given problem difference between numbers is 2

2)98 same as 1

3)195 as difference between numbers is 4