Question

The cost of two pencils, one eraser and three sharpeners is 23. The cost of six pencils, three erasers and one sharpener is 29. The cost of 14 pencils, seven erasers and seven sharpeners is 91. Find the cost of each pencil.​

Answer 1

Let, p, e and s be the number of pencils, erasers and sharpners respectively.

From Question we get,

2p + 3e + 1s = 23

4p + 5e + 7s = 67

Multiply first eqn by 6 and second eqn by 3, we get

12p + 18e + 6s = 138

12p + 15e + 18s = 201

Now adding both the above eqns, we get

24p + 33e + 24s = 339

Hence, answer is Rs. 339

Answer 2

Answer:

THE ANSWER IS CANNOT BE DETERMIND....