Mathematics

Question

Ivan biked 1 whole 2/3 on Monday, 2 wholes 1/3 hours on Tuesday, and 2 wholes 2/3 on Wednesday. What is the total number of hours Ivan spent biking?

1 Answer

  • [tex]1 \frac{2}{3} + 2 \frac{1}{3} + 2 \frac{2}{3} = [/tex]

    [tex] \frac{3*1+2}{3} + \frac{3*2+1}{3} + \frac{3*2+2}{3} =[/tex]

    [tex] \frac{3+2}{3} + \frac{6+1}{3} + \frac{6+2}{3} =[/tex]

    [tex] \frac{5}{3} + \frac{7}{3} + \frac{8}{3} =[/tex]

    [tex]= \frac{20}{3} h[/tex]

    In hours:

    20 |_3
    (2)....6hs
    x60' 
    ------
    120' |_3
    (0)....40' 

    Answer:
    6hs40min

    or

    [tex] \frac{20}{3} hs = \frac{20}{3} *60' = \frac{1200}{3} = 400'[/tex]

    400' = 6*60' = 360' + 40' = 400' (True)
    Until

    6hs40min
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