Question

Savita bought eggs at ₹8.40 a dozen. At what price per hundred must she sell them so as to earn a profit of 15%

Answer 1

cost of one egg = 8.40\12= 0.7
 then cost of egg per 100 =100×0.7=70
15%of 70= 70×15\100=10.5
then S.P of egg per 100=70+10.5=80.5rupee