write the answer in standard form-

the number of seconds in 7 years. plz answer quick. i've got a test.

@fazalazizmazhari;  correctly answered the question. Good effort. 

The detailed solution of the question is as follows :

Number of seconds in a minute = 60

Number of minutes in an hour = 60

Number of hours in a day = 24

∴ Number of seconds in a day = 60 × 60 × 24 = 86400

Number of days in a year = 365

∴ Number of seconds in a year = 86400 × 365 = 31536000

Number of seconds in 7 years = 7 × 31536000 = 220752000 = 2.20752 × 108.

  • -1

no of seconds in 1  day = 86400 = 8.64 x 104

no of seconds in 1 year = 86400x 365=31536000 = 3.1536x107

no of seconds in 7 yrs = 220752000 = 2.20752x108

hope its clear

cheers!

  • 1
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