Q. Today is Ketan’s birthday. One year from today he will be twice as old as he was 10 years ago. How old is Ketan today?
Explanation by: Mr. Dubey
Suppose the present age of Ketan is P years. According to question, present age of Ketan + 1 year = 2 ( present age of Ketan - 10 years ) P + 1 = 2 (P – 10) ⇒ P + 1 = 2P – 20 ⇒ 2P – P = 20 + 1 ∴ P = 21 years Therefore ,present age of Ketan is 21 years .
You must be Logged in to update hint/solution
Related MCQs on Math
Q. A train 175 m long running with a speed of 63 km/hr will pass a man in
Q. What was the day the 2nd July, 1984?
Q. If 14th October 2005 is Friday then which day is 14th October 2009?
Q. The HCF and LCM of two 2-digit number are 16 and 480 respectively. The numbers are ?
Learn All Math MCQs
Download our easy to use, user friendly Android App from Play Store. And learn MCQs with one click.
Discusssion
Login to discuss.