Question

The profit made by certain dealer is equal to T% of selling

price and P% of the cost price. Show that P = /

−​

Answer 1

Answer:

your answer is in the attachment

Answer 2

Answer:

• Let number of rows is x and number of students is y in a row. Then total number of students = xy
• A/C to question, (x - 2)(y + 1) = xy
• ⇒ xy + x - 2y - 2 = xy
• - 2y = 2 -------(1)
• Again, (x + 3)(y - 1) = xy →xy - x + 3y - 3= xy → -x + 3y = 3 -------(1)
• Solve equations (1) and (2),
• y = 5 and put it equation (1)
• x = 12
• Hence, total number of students = xy = 12 x 5 = 60

Step-by-step explanation:

• please make it a brainliest answer.