Question

2.) A shopkeeper earns a profit of Rs. 1 by selling one pen and incurs a loss of 40 paise
per pencil while selling pencils of her old stock. (i) In a particular month she incurs a
loss of Rs. 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?​

Answer 1

Step-by-step explanation:(i) profit on pen =45*1=45Rs

Loss=Rs 5 total loss on pencil=45+5=50Rs

Loss on 1 pencil=40 paise

Total number of pencils=50*100/40

5000/40=125

(ii) 70pens =profit of Rs 70

Total loss on pencils =₹70+0=70Rs

Loss on 1 pencil=40paise

number of pencils sold=70*100/40

7000/40=175 pencils