Question

3. Find the sum of the following without
actually adding
1 + 3 + 5, 1 + 3 + 5 + 7 + 9
HOTS​

Answer 1

Answer:

Answers are

1+3+5= 9

1+3+5+7+9= 25

Answer 2

Answer:-

(i) 1+3+5

Total Consecutive odd numbers = 3

Thus,n = 3

Sum = n²

= 3²

= 9

(ii) 1+3+5+7+9

Total Consecutive odd numbers = 5

Thus,n = 5

Sum = n²

= 5²

= 25

Hope it helps you....