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Question

The sum of three consecutive numbers is 51. Find the numbers.


A

15, 16, 17

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B

16, 17, 18

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C

17, 18, 19

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D

18, 19, 20

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Solution

The correct option is B

16, 17, 18


Let the numbers be x, x+1 and x+2.

Then the sum is : x + x+1+ x+2 = 3x + 3

3x + 3 = 51 (given)

3x = 51 – 3 = 48

x = 48 ÷ 3

x = 16

The numbers are 16, 17, 18.


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