Question

price should he sell the
selling a chuir for 30. a dealer makes a profit of 25%. Find what price did the dealer
Sana bought eggs at 8.40 a dozen. Ar what price per hundred must she sell them so as to earn a profit
& wrong Answer
pay for it?​

Answer 1

Answer for 1st question

Cost Price (CP)

Let CP be x

Selling Price (SP) = ₹ 30

Profit % = 25%

Profit % is on CP

This implies that The equation will be

x + 25% of x = 30

x + 1/4 of x = 30

x + x/4 = 30

5x/4 = ₹30

x = 30 × 4/5

x = 6×4

x = ₹24

Answer for 2nd question

Cost per egg =  

12

8.4

​  

=0.7

Cost per hundred egg =Rs70

Let selecting price per hundred be Rs.y

⇒  

70

y−70

​  

×100=15

⇒10y−700=105

⇒y=80.5Rs