Question

4.The sum of 20 consecutive odd numbers is.....

(1 Point)


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Answer 1

Step-by-step explanation:

1,3,5,7,9

this is answer that

Answer 2

Step-by-step explanation:

they are in AP

a = 3, d = 2

$tn = 2n + 1$

$s20 = (20 \div 2)(2 \times 3+ 19 \times 2)$

$s20 = 10 \times 44= 440$

ANS.