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प्रश्न
Three consecutive numbers whose sum is 12 are ______, ______ and ______.
उत्तर
Three consecutive numbers whose sum is 12 are 3, 4 and 5.
Explanation:
Let us take three consecutive numbers to be x, (x + 1), (x + 2)
x + x + 1 + x + 2 = 12
⇒ 3x + 3 = 12
⇒ 3x = 12 – 3 = 9
⇒ `x = 9/3 = 3`
Therefore, the three numbers are 3, 4, 5.
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