Question

the cost of 5 pens is equal to the selling price of 4 pencil find the gain percent

Answer 1

let the sp of 1 pen be x
sp of 4 pen =4x
cp of 5 pen =4x
sp of 5 pen=5x
profit=sp-cp
=5x-4x
=x
Then,profit%=(profit÷cp)×100
=(x÷4x)×100
=25%

Answer 2

Answer:

25 percentage

Step-by-step explanation:

let the sp of 1 pen be x

sp of 4 pen= 4x

cp of 5 pen= 4x

sp of 5 pen= 5x

profit= 5x-4x= x

Then,profit percent=(profit÷cp)×100

=(x÷4x)×100=25percent. answer