Question

the selling price of 12 pencils is equal to the cost price of 15 pencils, find the gain percent​

Answer 1

Given.

• let cost price of 1 pen =x
• and cost price of 15 pen =15x

• selling price of 1 pen =y
• selling price of 12 pen =12

___________________________

solve,

• According to question.

➡️ 12y=15x

➡️ y = 15x/12

➡️y = 5x/4

-----------------------^^^^^----------------------

• here is a profit.

• profit % = 5x/4 - x ×100

x

• here x cancel out by x

• remaining part we have.

➡️5x/4 -1 × 100

• taking l.c.m and solve
• we get,

➡️ 1/4×100

➡️1×25=25% answer.

✍️✍️✍️✍️mark it as brain list✍️✍️✍️✍️

☑️☑️☑️☑️hope it helps a lot☑️☑️☑️☑️