Question

Articles are bought at rs 45 per dozen and sold at rs 85 per score find the gain or loss %

Answer 1

cost prize for one dozen= rs 45
cost prize for 1 article= rs (45/12)=rs 3.75

selling price of 1 score= rs 85
selling price of 1 article= rs (85/20) = rs 4.25

thus gain= 4.25-3.75 = rs 0.5
gain%= (0.5/3.75) *100 = 66.67%

hope this helps!

Answer 2

gain=85-45=40
then gain%=40/85*100=47.05%