Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
20 minutes is what percent of an hour?
35%
50%
30%
33 31тАЛ %
None of the above
33 31тАЛ %
Recognize that 20 minutes is exactly one-third of 60 minutes. Since 31тАЛ=33.33%, the answer is immediately 3331тАЛ%.
Time duration = 20 minutes, Reference time = 1 hour
Percentage=(WholePartтАЛ)├Ч100%
Recognize that 20 minutes is exactly one-third of 60 minutes. Since 31тАЛ=33.33%, the answer is immediately 3331тАЛ%.
Many students mistake 20 minutes as 20% of an hour because they forget to convert the units (1 hour = 60 minutes).
Unit Normalization
To calculate the percentage, both values must be in the same unit. Since 1┬аhour=60┬аminutes, we express the whole as 60 minutes.
Whole=60┬аminutes
Setting up the Fraction
The part is 20 minutes and the whole is 60 minutes. The fraction is 6020тАЛ.
6020тАЛ=31тАЛ
Calculating Percentage
Convert the fraction 31тАЛ to a percentage by multiplying by 100%.
31тАЛ├Ч100%=3331тАЛ%
D is correct because 20 minutes out of 60 minutes represents exactly one-third, which is equivalent to 33 1/3%.
This concept is fundamental for Time and Work problems where efficiency is often calculated as a fraction of a total task per unit time.
Get instant step-by-step AI explanations, full shift Previous Year Papers (SSC GD, RRB, SSC JE), and regional rank analysis on the official Examoogle App.
Free Download тАв 100K+ Aspirants