Question

A shopkeeper earns a profit of rs.1 by selling a pen and loses 50 paise by selling a pencil.
Represent the profit and loss in terms of integers.
(i) There is a loss of rs.5 in a month if he had sold 45 pens, then find the number of pencils sold in that month.
(ii) There is no profit and no loss in the second month. If he had sold 70 pens, then find the
number of pencils sold.

Step by step explanation​

Answer 1

Answer:

number of pencils sold=125 pencils.

Step-by-step explanation:

Profit earned by selling 1 pen = Re 1

Profit earned by 45 pens = Rs. 45, which we denote by + Rs. 45

Total loss given = Rs. 5, which we denote by Rs -5.

Profit earned + Loss incurred = Total Loss

Therefore, loss incured = Total Loss - Profit earned.

= Rs. (-5-45)

=Rs. (-50)= -5000 paise

Loss incurred by selling one pencil = 40 paise, which we write as -40 paise.

So, number of pencils sold = (−5000)÷(−40)=125 pencils.