Question

A dealer buys eggs at rs. 36 per gross. he sells the eggs at a profit of 12(1/2)% on the cost price. what is the selling price per egg (approximately)?

Answer 1

1gross= 144

144 eggs = ₹36

CP of 1 egg = 36/144= 0.25 paise

36*12.5/100 = 4.5

36+4.5=₹40.5(SP)

now SP of 1 Egg = 40.5/144=0.28 paise (approx.)

Answer 2

Given: Cost price of eggs per gross = Rs. 36

           Profit on cost price = $12\frac{1}{2}$ %

To find: Selling price per egg

Solution: Given that,

A dealer buys eggs at Rs. 36 per gross.

∵ 1 gross = 144 items (eggs in the given question)

i.e., Cost price of 144 eggs = Rs. 36

Using unitary method:

Cost price of 1 egg = $\frac{36}{144} = Rs. \ 0.25$

also, profit on cost price = $12\frac{1}{2} \ or \ 12.5$ %

Selling price per egg = ?

∵ $Selling \ Price = (1 + \frac{Profit}{100}) \ of \ Cost \ Price$

⇒ $(1 + \frac{12.5}{100})$ × $0.25$

⇒ $(\frac{112.5}{100}) \ * \ 0.25$

⇒ $\frac{112.5 \ * \ 0.25}{100} = \frac{28.125}{100} = Rs. \ 0.28125$

Hence, selling price per egg = Rs. 0.28 or 28 Paisa (approx.)