Find the sum of all odd numbers between 0 and 50?
Answers
Answered by
0
Step-by-step explanation:
50/2 = 25 odd nos. are between 0 and 50
sum of 25 consecutive odd nos will be equal to 25^2 = 25×25= 625
Answered by
1
Answer:
a + ( n - 1) d = an
=> 1 + ( n - 1) 2 = 49
=> ( n - 1) 2 = 48
=> ( n - 1) = 24
=> n = 25.
So,
Sn = n/2 × ( a +l)
= 25 /2× ( 1 +49)
= 25 /2 × 50
= 25 ×25
= 62
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