Question

Raja is three times as old as Arun. Three years ago, he was four times as old as Arun. How old is Raja now?

• A. 15
• B. 6
• C. 12
• D. 27

Answer 1

Answer:

D. 27

1. Equations:

   • R = 3A

   • R - 3 = 4(A - 3)

2. Substitution:

   • 3A - 3 = 4(A - 3)

3. Solve for A:

   • 3A - 3 = 4A - 12

   • A = 9

4. Solve for R:

   • R = 3(9)

   • R = 27

Answer: Raja is 27 years old.