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Three times a number reduced by 5 equals 16. The number is
A21
B3
C11
D7
Answer & Solution
Correct answer: D. 7
1. Let the number be x. Then 3 x - 5 = 16.
2. Add 5: 3 x = 21.
3. Divide by 3: x = 7.
4. Hence the number is 7.
_Source: Selina Concise Mathematics Class 8, Ch 18 Linear Equations in One Variable (Mistral OCR'd PDF), section on word problems_
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