If a 12 oz bottle of shampoo lasted for 16 weeks, we have a ratio of 12:16 which can be shortened to 3:4.
Now if we have 18 oz bottle we know that it's 1/2 more than 12 oz bottle, so the ratio will be also 1/2 more. So if it was 12:16, the new ratio will be:
12 + (1/2 * 12) : 16 + (1/2 * 16)
12 + 6 : 16 + 8
18 : 24
It means that 18 oz bottle should last for 24 weeks. Of course the ratio has to stay the same in its lowest form in both situations and as 18:24 can be shortened to 3:4, it proves it's correct :)
The 12 ounce bottle is a better buy as the customer spends less per ounce ($0.1158/oz) than the 24 ounce ($0.1163/oz).
Answer: Rs. 100
Step-by-step explanation:
Given the following :
Total expenditure for dance show = Rs. 25000
Profit made except expenditure = Rs. 12,000
Number of people who observed and paid for the show = 370
Amount paid per person will be :
(Total amount or revenue realized / number of observers who paid)
Total revenue realized = (total expenditure + profit made)
Total Revenue realized = Rs.(25,000 + 12,000) = Rs. 37,000
Amount paid per observer = (Rs. 37,000 / 370)
= Rs. 100
