The cost of one pencil, two pens and four erasers is Rs 22 while the cost of five pencils, four pens and two erasers is Rs 32. How much will three pencils, three pens and three erasers cost? (a) Rs 21    (b) Rs 24    (c) Rs 27    (d) Rs 30

The cost of 2 pencil, 4 pens and 8 erasers is ? 12 and the cost of 2 pens, 10 pencils and 4 erasers is ? 42. How much will 3 pencils cost? (A)?10 (B) ?15 (C) ? 12 (D) ? 18

Cost of two pencils and three erasers is ₹ 18, while the cost of one pencil and two erasers is ₹ 11. Find the cost of each pencil.

If the cost of 2 pencils and 3 erasers is Rs 14. Wheras the cost of 3 pencils and 5 erasers is Rs 22, then find the cost of one pencil and one eraser

One pencil costs Rs. 3 and one pen costs Rs. 25. The total cost of x pencils and y pens is

Cost of 8 pencils, 5 pens and 3 erasers is Rs 111. Cost of 9 pencils, 6 pens and 5 erasers is Rs 130. Cost of 16 pencils, 11 pens and 3 erasers is Rs 221. What is the cost (in Rs) of 39 pencils, 26 pens and 13 erasers?

The cost of 4 dozen pencils, 3 dozen pens and 2 dozen erasers is Rs. 60. The cost of 2 dozen pencils, 4 dozen pens and 6 dozen erasers is Rs. 90 whereas the cost of 6 dozen pencils, 2 dozen pens and 3 dozen erasers is Rs. 70. Find the cost of each item per dozen by using matrices.

The cost of 3 pens and 5 pencils is Rs 40. Find the cost of 12 pens and 20 pencils