In 5 years, a man will be 3 times as old as his son. If the son is currently 5 y

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Question: In 5 years, a man will be 3 times as old as his son. If the son is currently 5 years old, how old is the man now?

Options:

Correct Answer: 25

Solution:

Let the man\'s current age be x. In 5 years, x + 5 = 3 * (5 + 5). Solving gives x = 25.

In 5 years, a man will be 3 times as old as his son. If the son is currently 5 years old, how old is the man now?

In 5 years, a man will be 3 times as old as his son. If the son is currently 5 years old, how old is the man now?

Correct Answer: 25

Step 1: Identify the current age of the son. The son is currently 5 years old.
Step 2: Determine the son's age in 5 years. In 5 years, the son will be 5 + 5 = 10 years old.
Step 3: Let the man's current age be represented by 'x'.
Step 4: Write an equation for the man's age in 5 years. In 5 years, the man will be x + 5 years old.
Step 5: According to the problem, in 5 years, the man will be 3 times as old as his son. So, we can write the equation: x + 5 = 3 * (5 + 5).
Step 6: Simplify the equation. The right side becomes 3 * 10 = 30. So, the equation is now: x + 5 = 30.
Step 7: Solve for 'x' by subtracting 5 from both sides: x = 30 - 5.
Step 8: Calculate the value of 'x'. This gives x = 25.
Step 9: Conclude that the man's current age is 25 years old.

Algebraic Equations – The question tests the ability to set up and solve linear equations based on age relationships.
Age Problems – It involves understanding how to manipulate age-related information over time.