Math Problem Statement
n is four times the three digit hundreds digit and one third of the drama digit. If the number exchanged between units and tens digits is 18 more than the previous digit, what is the value of n
Solution
Let's break down the problem step by step:
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Let the three-digit number be represented as , where is the hundreds digit, is the tens digit, and is the units digit.
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According to the problem, is four times the hundreds digit :
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is also one-third of the "drama digit." Assuming that the "drama digit" is the same as (the units digit), we get:
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The number formed by exchanging the tens and units digits is . This new number is 18 more than the original number, which gives the equation:
Step-by-step solution:
Step 1: Set up the equation from the exchange of digits.
Simplifying the above: Canceling out on both sides: Simplifying further: Thus, .
Step 2: Combine with the condition for .
From the first two conditions: Therefore: Multiplying both sides by 3 to eliminate the fraction: Since , we also have:
Step 3: Solve the system of equations.
Now we have two equations:
Let’s substitute for into : And since , we equate this to get: Multiplying through by 3: This matches the earlier equation, confirming that .
Step 4: Find the value of .
At this point, we can test different values of to satisfy this condition:
- If , then gives , which is not possible for a digit.
- If , then gives , which is also not possible.
- If , then gives , not possible.
Step 5: No real solution under reasonable assumptions.
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Math Problem Analysis
Mathematical Concepts
Algebra
Digit Manipulation
Equation Solving
Formulas
n = 4h
n = u / 3
100h + 10u + t = 100h + 10t + u + 18
u - t = 2
12h = t + 2
Theorems
Basic Algebraic Manipulation
Suitable Grade Level
Grades 9-12
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