Question

if selling price of five pens is equal to the cost price of four pens then the gain or loss % is-

Answer 1

CP of 5 pens=rs.5

SP of 5 pens=CP of 4 pens=rs.4

loss=CP-SP

=5 -4

=1%

$loss = \frac{loss}{sp} \times 100 \\ \\ \frac{1}{5} \times 100 \\ = 20\% \: loss$

✔✔here is your answer✔✔

Answer 2

Answer:

The loss% is 20%.

Step-by-step explanation:

Let CP of 1 pen be x

So, CP of 4 pens = 4x

CP of 5 pens = 5x

We are given that  selling price of five pens is equal to the cost price of four pens

So, SP of 5 pens = CP of 4 pens = 4x

CP of 5 pens = 5x

CP>SP

So,There is a Loss

Loss% = $\frac{CP-SP}{CP} \times 100$

Loss% = $\frac{5x-4x}{5x} \times 100$

Loss% =20%

Hence The loss% is 20%.