Rahim is 12 years old. He is three times older than Karim. What will be the age of Rahim when he is two times older than Karim?
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
1 (16 years)
বিস্তারিত ব্যাখ্যা ও বিশ্লেষণ:
Solution:
Rahim is 12 years old.
He is three times older than Karim.
karim is = 12 / 3 years = 4 years
let, Rahim's age will be two times than karim after x years
(12 + x) = 2 (4 + x)
⇒ 12 +x = 8 + 2x
⇒ 2x - x = 12 - 8
∴ x = 4
Rahim's age will be = 12 + 4 years = 16 years
