Question

10. A shopkeeper earns a profit of 5 by selling one note book and incurs a loss of 1 by selling an old
pen. In a particular month, the shopkeeper earns a profit of 185. If he sold 75 old pens, find the
number of the note books sold.
A fertain freezing nrocess ruires that room temperature to be lowered from 60°C at the rate of 'n​

Answer 1

Step-by-step explanation:

Profit of selling one note book = Rs 5

Loss of selling one old pen = Rs 1

Profit of the shopkeeper in a particular month= Rs 185

Loss of 75 old pens= Rs 75

So, Rs (185-75) = Rs 115.

Profit by selling notebook = Rs 115

So, no. of note books = Rs (115÷5) = Rs 23.

Hope this help you.

Thanx me....