A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number?
Solution
Correct Answer: Option C
Let,
the number is x
According to the given question-
3(2x + 9) = 75
⇒ 6x + 27 = 75
⇒ 6x = 75 - 27
⇒ 6x = 48
⇒ x = 48/6
⇒ x = 8
Hence, the number is 8.
the number is x
According to the given question-
3(2x + 9) = 75
⇒ 6x + 27 = 75
⇒ 6x = 75 - 27
⇒ 6x = 48
⇒ x = 48/6
⇒ x = 8
Hence, the number is 8.
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