Question

If the cost price of 6 pencils is equal to the selling price of 5 pencils.find the gain per cent​

Answer 1

Step-by-step explanation:

Let the cost price of each pencil be Rs 1.

$\large\implies{\sf CP of 5 pencils}$ Rs 5.

$\large\implies{\sf }$ SP of 5 pencils= CP of 6 pencils = Rs 6.

$\large\implies{\sf GAIN}$ (SP-CP) (6 - 5) = Rs 1

$\large\implies{\sf Gain%}$ $\large{\sf {\frac{Gain}{CP}}}$ X 100

$\large{\sf {\frac{1}{5}}}$ X 100 %

= 20%

Answer 2

C.P of 5 pencil = ₹5

S.P of 5 pencil = C.P of 6 pencil = ₹6

Gain % = (S.P - C.P)/C.P × 100

= (6 - 5)/5 × 100

= 1/5 × 100

= 20%