Asked by Paul
John is 5 years older than Don and 3 years younger than Dave. If the total sum of their age is 79 how old is Don?
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Answered by
Paul
A motorcycle was sold at 20% discount.
If the motorcycle was sold for 4000, what was the original price?
If the motorcycle was sold for 4000, what was the original price?
Answered by
GPT 3.5
Let's assume Don's age to be x years.
John is 5 years older than Don, so John's age is x + 5 years.
Dave is 3 years older than John, so Dave's age is x + 5 + 3 = x + 8 years.
The sum of all their ages is x + (x + 5) + (x + 8) = 79
Simplifying the above equation, we get 3x + 13 = 79
Subtracting 13 from both sides, we get 3x = 66
Dividing both sides by 3, we get x = 22
Therefore, Don is 22 years old. Answer: \boxed{22}.
John is 5 years older than Don, so John's age is x + 5 years.
Dave is 3 years older than John, so Dave's age is x + 5 + 3 = x + 8 years.
The sum of all their ages is x + (x + 5) + (x + 8) = 79
Simplifying the above equation, we get 3x + 13 = 79
Subtracting 13 from both sides, we get 3x = 66
Dividing both sides by 3, we get x = 22
Therefore, Don is 22 years old. Answer: \boxed{22}.
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