7. a. Write 63 as sum of consecutive odd numbers.
Write 93 as sum of consecutive odd numbers.
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Answer1:
The sum of 3 consecutive odd numbers is 63.
x=19. therefore, x+2 = 19+2; x+2= 21. x+4 = 19+4; x+4 = 23. Hence 19, 21 and 23 are the three consecutive odd numbers which give 63 when adding these numbers.
Answer2:
The sum of three consecutive odd numbers is 93.
What is the middle number? => x = 29 => 29, 31, 33 are three consecutive odd numbers. Therefore, the middle number is 31.
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