Question

EXAMPLE 7 A shopkeeper earns a profit of L by selling one pen and incurs a loss
of 40 paise per pencil while selling pencils of her old stock,
(1) In a particular month she incurs a loss of 5. In this period, she sold 45 pens. How
many pencils did she sell in this period?
(ii) In the next month she earns neither profit nor loss. If she sold 70 pens, how many
pencils did she sell?
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Answer 1

Step-by-step explanation:

here your answer

Answer 2

Answer:

(i) profit earned by selling one pen= ₹ 1

profit earned by selling 45 pens = to ₹45, which we donate by +₹45

total loss given=to ₹ 5, which we donate by - ₹5

profit earned+ loss incurred = total loss

therefore ,loss incurred = total loss- profit earned = ₹ (-5-45)=₹ (-50)= -5000 paise

loss incurred by selling one pencil= (-5000) ÷(-40)=125

(ii) In the next month there is neither

profit nor loss.

So, profit + Loss incurred =0

Profit earned= -Loss incurred.

Now, profit earned by selling 70pens.

Hence, loss incurred by selling pencils=

₹ 70 which we indicate by -₹70 or -7000 paise.

Total number of pencil sold=(-7000)÷(-40)

=175 pencils.

Hope it's helpful ☺️