Question
A number is doubled and 9 is added . If the resultant is rebled, it become 75 . What is that number ?
Answer: Option C
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Let the number be `x`. Then , 3(`2x` + 9) = 75 `hArr` `2x` + 9 = 25 `hArr` `2x` = 16 `hArr` ` = 8.
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