NCERT Exercise 3.1 - Q1(ii) - Pair of Linear Equations in Two Variables
Question: Form the pair of linear equations in the following problems, and find their solutions graphically. (ii) 5 pencils and 7 pens together cost ₹ 50, whereas 7 pencils and 5 pens together cost ₹ 46. Find the cost of one pencil and that of one pen. X X' Y Y' O
Answer: Cost of a pencil is Rs 3, and cost of a pen is Rs 5.
Full step-by-step NCERT solution with diagrams on Something by Zero.