Question

The cost of a pencil is 25 ps more than the cost of a eraser. If the cost of 8 pencils and 10 erasers is Rs 12.80, find the cost of each. solve it

Answer 1

x=pencil
y=eraser..........

Answer 2

Step-by-step

Let the cost of erasers be x

B.T.P 10x+8(25+x)=1280

=>10x+200+8x=1280

=>18x=1280-200

=>x=1080/18

∴x=60

Ans. Erasers are 60 cents while pencils are 85 cents