Question

find the result of substrating the sum of all integers between 20 and 30 and sum of all integers from 20 to 30.​

Answer 1

Answer:

Required number = (Sum of all integers between 20 and 30 – Integers between 20 and 30)

(20 + 21 + 22 + 23 + 24 + 25 + 26 + 27 + 28 + 29 + 30) – (21 + 22 + 23 + 24 + 25 + 26 + 27 + 28 + 29 )

⇒ 20 + 30 = 50

∴ Required number = 50

Step-by-step explanation:

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