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Ten years ago, the age of G was half of H's age. If H is now 30 years old, how o

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Question: Ten years ago, the age of G was half of H\'s age. If H is now 30 years old, how old is G now?

Options:

  1. 15
  2. 20
  3. 25
  4. 30

Correct Answer: 25

Solution: 

Ten years ago, H was 20 years old. Therefore, G was 10 years old. Now, G is 10 + 10 = 20 years old.

Ten years ago, the age of G was half of H's age. If H is now 30 years old, how o

Practice Questions

Q1
Ten years ago, the age of G was half of H's age. If H is now 30 years old, how old is G now?
  1. 15
  2. 20
  3. 25
  4. 30

Questions & Step-by-Step Solutions

Ten years ago, the age of G was half of H's age. If H is now 30 years old, how old is G now?
Correct Answer: 20
  • Step 1: Determine H's current age, which is given as 30 years old.
  • Step 2: Calculate H's age 10 years ago by subtracting 10 from 30. So, H was 30 - 10 = 20 years old.
  • Step 3: According to the question, 10 years ago, G's age was half of H's age. Since H was 20 years old then, G's age was 20 / 2 = 10 years old.
  • Step 4: Now, to find G's current age, add 10 years to G's age from 10 years ago. So, G is now 10 + 10 = 20 years old.
  • Age Relationships – Understanding how to calculate ages based on given relationships over time.
  • Time Calculation – Ability to calculate ages by considering past and present time frames.
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