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Find the sum of first 84 even numbers.

A) 7140
B) 7540
C) 6720
D) 8832

Correct Answer:

A) 7140

Description for Correct answer:
We know that,

Sum of first n even numbers = n (n + 1)

Given, n = 84

Required sum = 84 (84 + 1)

= \( \Large 84\times 85 \) = 7140

Part of solved Number System questions and answers : >> Aptitude >> Number System

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