Question

Naresh bought 4 dozen pencils at rupees 10.80 a dozen and sold them for 80 paise each what is his gain or loss percent

Answer 1

Naresh bought 4 dozen pencils at rupees 10.80 a dozen 
so total cost price= 10.80×4
                            =43.20 rupees

she sold each do zen at 80 paise
so total selling price=80 paise *4
                                   =240 paise
   =2.4 rupees

loss= c.p-s.p
         =43.20-2.40
           =40.8
loss%=[40.8/43.20]*100

              =94.444%

pls barinliest

Answer 2

$<b><font color = "orange" > Solutions :-$

We have,

Cost Price of 1 Dozen pencil = Rs 10.80
Cost Price of 1 pencil = Rs 10.80/12 = Rs 0.90

Selling price of each pencil = Rs 0.80

Selling price < Cost price

Find the Loss :-

Loss = C.P - S.P
= Rs (0.90 - 0.80)
= Rs 0.10

Find the Loss % :-

Loss % = (loss × 100)/C.P %
= (0.10 × 100)/0.90 %
= 10/0.90 %
= 11.11 % approx.

Answer : Loss % = 11.11%