Teaching Bihar D.El.Ed Mock Test Series 2024-25 Quantitative Aptitude Algebra Linear Equation in 2 Variable
The cost of 21 pencils and 9 pens is Rs. 276, and the cost of 6 pencils and 3 pens is Rs. 84. The cost of 1 pencil and 1 pen is:
1
Rs. 20
2
Rs. 10
3
Rs. 40
4
Rs. 30