Question

The actual addition find the sum of:
1+3+5+7+9+...........+51+53

Answer 1

Answer:

11 is a answer 1+3+5+7+9........51+53

Answer 2

Answer:

729

Step-by-step explanation:

We have to find the sum of above series without actual addition

The given series is 1+3+5+7+9+.....+51+53

The series is in the form of AP with a=1, d=2 and n=27 and last term l=53

Sum of series = n/2∗ (a + l)

= 27/2 ∗ (1+53)

= 13.5*54

= 729

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