The average of nine consecutive odd numbers is 53. The least odd number is

Question

Options:

A . 45

B . 35

C . 27

D . 22

Answer: Option A
Answer: (a)x + x + 2 + x + 4 + x + 6 + x + 8 + x + 10 + x + 12 + x + 14 + x + 16 = 9 × 53 ⇒ 9x + 72 = 477 ⇒ 9x = 477 – 72 = 405 ⇒ x = $405/9$ = 45

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