ara prolit 01Z3%, Find what price did the deal e prSarita bought eggs

1.	ara prolit 01Z3%, Find what price did the deal e prSarita bought eggs at 8.40 a dozen. At what price per hundred must she sell them so as to earn a proft
Answer» Cost of a dozen eggs = 8.40 cost of 1 egg = 8.40/12 (since , 1 dozen = 12 eggs) => rs 0.7 cost of 100 eggs = 0.7 × 100 => rs 70 CP = rs 70gain % = 15% sp = (100+gain%)/100 × cp=> sp = (100+15)/100 × 70=> sp = 115/100 × 70=> sp = 115×7/10=> sp = rs 805/10=> sp = rs 80.5 thank you

ara prolit 01Z3%, Find what price did the deal e prSarita bought eggs at 8.40 a dozen. At what price per hundred must she sell them so as to earn a proft

Answer»

Cost of a dozen eggs = 8.40 cost of 1 egg = 8.40/12 (since , 1 dozen = 12 eggs)

=> rs 0.7

cost of 100 eggs = 0.7 × 100 => rs 70

CP = rs 70gain % = 15%

sp = (100+gain%)/100 × cp=> sp = (100+15)/100 × 70=> sp = 115/100 × 70=> sp = 115×7/10=> sp = rs 805/10=> sp = rs 80.5

thank you