Question

A pen is made of plastic and metal. The price of plastic in 2014 has increased by 10% of its cost in 2010 and the cost of metal has increased from 5% of the cost of pen in 2010 to 12% of the cost of pen

in 2014. What will be the reduction in

sales, if there is no change in the revenue made by the manufacturer?​

Answer 1

Sorey the answer is Ink and springs of the pen