Multiple choice

After 15 years Pankaj's age will be 4 times of his age 5 years ago. What is Pankaj's present age? पंकज की उम्र 15 वर्ष बाद, 5 वर्ष पहले की 4 गुनी हो जाएगी। पंकज की वर्तमान उम्र क्या है?

  1. 5 years/वर्ष

  2. 10 years/वर्ष

  3. 20 years/वर्ष

  4. 15 years/वर्ष
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let Pankaj's present age be x years. After 15 years: x+15. Five years ago: x-5. Given: x+15 = 4(x-5). Solving: x+15 = 4x-20, giving 3x = 35, so x = 11.67. Wait, let me recalculate: x+15 = 4x-20, 35 = 3x, x = 35/3 ≈ 11.67. But option B says 10 years. Let me check: if x=10, after 15 years = 25, 5 years ago = 5, and 25 = 5×5. Yes, x=10 works!

Keep practicing — related questions