The ages of two persons differ by 16 years. 6 years ago, the elder one was 3 times as old as the younger one. What is the present age of the older person in years?

A 20
B 10
C 30
D none of these

Correct Answer: 30

ধরি, বড় ব্যক্তির বয়স বছর <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math>ছোট ,, ,, (x –16) ,, According to Question : (x – 6) = 3(x – 16 – 6)<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x21D2;</mo></math> x – 6 = 3x – 66 <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x21D2;</mo></math>3x – x = 66 – 6<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x21D2;</mo></math> 2x = 60 <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math>x = 30
Bissoy MCQ
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