NCERT Exercise 3.3 - Q2(ii) - Pair of Linear Equations in Two Variables
Question: Form the pair of linear equations in the following problems, and find their solutions (if they exist) by the elimination method: (ii) Five years ago, Nuri was thrice as old as Sonu. Ten years later, Nuri will be twice as old as Sonu. How old are Nuri and Sonu?
Answer: Nuri's present age is 50 years, and Sonu's age is 20 years.
Full step-by-step NCERT solution with diagrams on Something by Zero.