Question

1. Cost of 5 pens and 6 pencils is Rs.39.00. Cost of 6 pens and 5 pencils is Rs.49.00. Then find the
cost of 2 pens and 2 pencils?
A) Rs. 18.00 (B) Rs. 16.00 C) Rs. 20.00 D) Rs. 10.00​

Answer 1

Answer:

Step-by-step explanation:

cost of a pencil = x

cost of pen = x+3

10x + 5(x+3) = 30

10x + 5x + 15 = 30

15x = 15

x = 1

cost of pencil = 1

cost of pen = 1+3 or 4