Question

without adding find the sum of1+3+5+7+9​

Answer 1

Answer:

1+3+5+7+9=25

Step-by-step explanation:

WE CAN FIND THIS BY THE PROPERTY:-

Sum of n number of odd numbers=n^2

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YOU CAN ALSO CHECK OUT THE PROPERTY WITH DIFFERENT ODD NUMBERS... BUT THEY SHOULD START WITH 1 ONLY

Answer 2

Answer:25

total consecutive odd numder=5

thus n=5

thereforce sum=n^2

                        5^2 = 25