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A number is doubled and 9 is added. If the resultant is trebled it becomes 75. What is the number?1. 122. 103. 84. 14 |
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Answer» Correct Answer - Option 3 : 8 Given: Double of number + 9 = resultant Thrice of resultant = 75 Calculation: Let the number be x ⇒ 2x + 9 = resultant 3(2x + 9) = 75 ⇒ 6x + 27 = 75 ⇒ 6x = 75 – 27 ⇒ 6x = 48 ⇒ x = 48/6 ⇒ x = 8 ∴ The number is 8 |
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