Class 10 Maths · Pair of Linear Equations in Two Variables · NCERT Exercise 3.4 · Question 4
The cost of 4 pens and 4 pencil boxes is Rs 100. Three times the cost of a pen is Rs 15 more than the cost of a pencil box. Form the pair of linear equations for the above situation. Find the cost of a pen and a pencil box.
Answer
Cost of a pen Rs and cost of a pencil box Rs .
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