In a non-leap year, there are 365 days. Each day has 24 hours. So, to calculate the total number of hours in a non-leap year, you would multiply 365 days by 24 hours, which equals 8,760 hours.
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525,600 365 days in a non leap year 24 hours in a day 60 minutes in an hour 365 * 24 * 60 = 525600
It's impossible to be totally sure because we do not know which year the person was born in.Without taking leap years into account:Hours in a day = 24Days in a year = 365Hours in a year = 24 x 365 = 8760Hours in 57 years = 8760 x 57 = 499320.Accounting for leap years:It is impossible to be sure exactly how many hours old this person is because it will depend on the number of leap years he has experienced, and that depends on the year in which he was born. Assuming that he was born 57 years ago this year (2010) the calculations are as follows:His birth year = 2010 - 57 = 1953.Number of leap years between 1953 and 2010: 14Number of non-leap years he has lived = 57 - 14 = 43.Hours in a day = 24Days in a non-leap year = 365Hours in a non-leap year = 24 x 365 = 8760Days in a leap year = 366Hours in a leap year = 8784Hours in the 57 years between 1953 and 2010 = (43 x 8760) + (14 x 8784) = 376680 + 122976 = 499656
How may hours are in one day? How many days are in 1 year? Multiply those two numbers together. Then multiply by 3 for 3 years. You've got it. (Just in case one of those years is a leap year, you might want to have 2 answers ready.) ---- That means 26280 in 3 non leap years. Add 24 for a leap year.
For a non-leap year, 60 seconds x 60 minutes x 24 hours x 365 days = 31,536,000 seconds
34 hours = A little short of a day and a half (36 hours). or 122,400 seconds or 0.00388 of a non-leap year.