Question

The cost of a pen is eight times the cost of a pencil. If the cost of 4 pens and 3 pencils is rs.210, find the cost of a pencil and a pen separately

Answer 1

Cost of a pencil = a

Cost of a pen = 8b

Cost of 4 pens + 3 pencil = 210

4(8a) + 3a = 210

32a + 3a = 210

35a = 210

a = 6

Cost of a pencil = 6

Cost of a pen = 8x 6= Rs.48

Answer 2

answer is 6 and 48....