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If the present age of C is 3 times that of D and the sum of their ages is 48, wh
If the present age of C is 3 times that of D and the sum of their ages is 48, what is the present age of D?
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Q1
If the present age of C is 3 times that of D and the sum of their ages is 48, what is the present age of D?
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Let D's age be x. Then C's age is 3x. So, x + 3x = 48, which gives 4x = 48, hence x = 12.
Questions & Step-by-step Solutions
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Q: If the present age of C is 3 times that of D and the sum of their ages is 48, what is the present age of D?
Solution:
Let D's age be x. Then C's age is 3x. So, x + 3x = 48, which gives 4x = 48, hence x = 12.
Steps: 7
Show Steps
Step 1: Let D's age be represented by the variable x.
Step 2: Since C's age is 3 times D's age, we can represent C's age as 3x.
Step 3: According to the problem, the sum of C's age and D's age is 48. We can write this as x + 3x = 48.
Step 4: Combine the terms on the left side: 4x = 48.
Step 5: To find the value of x, divide both sides of the equation by 4: x = 48 / 4.
Step 6: Calculate the result: x = 12.
Step 7: Therefore, D's present age is 12.
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