Ramesh worked for 2/4 of an hour. Meeta works for 2/3 of an hour. How much they work altogether…​

Question

Ramesh worked for 2/4 of an hour. Meeta works for 2/3 of an hour. How much they work altogether…​

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Serenity 1 month 2021-08-21T12:32:33+00:00 2 Answers 0 views 0

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    0
    2021-08-21T12:33:36+00:00

    Answer:

    ramesh worked for 2/4×60=30mins

    meeta worked for 2/3×60=40mins

    together they worked for

    1/30+1/40=7/120

    =120/7mins

    or

    2/7 of an hour(120/7×60)

    hope it helps you

    MARK it as BRAINLIEST:)

    0
    2021-08-21T12:33:47+00:00

    ➣ AnSwer :-

    Way :-1

     \longrightarrow \sf \: \frac{2}{4}  +  \frac{2}{3}  \\

    LCM of 4 and 3 is 12.

     \longrightarrow \sf \: \frac{2 \times 3}{4 \times 3}  +  \frac{2 \times 4}{3 \times 4}  =  \frac{6}{12}  +  \frac{8}{12}  \\

     \longrightarrow \sf \: \frac{6 + 8}{12}  =  \cancel \frac{14}{12} =  \frac{7}{6}  \\

    ____________________________

    Way :-2

    1 hour = 60 minutes

    So,

    Ramesh working time

     \longrightarrow \sf \: \frac{2}{4}  \times 60 =  \frac{2}{4}  \times  \frac{60}{1}  \\

     \longrightarrow \sf \cancel \frac{120}{4} =  \frac{30}{1}  = 30 \\

    Ramesh works for 30 minutes…

    Meera working time

     \longrightarrow \sf \: \frac{2}{3}  \times 60 =  \frac{2}{3}  \times  \frac{60}{1}  \\

     \longrightarrow \sf \cancel  \frac{120}{3} =  \frac{40}{1}  = 40  \\

    Meera works for 40 minutes…

    Total time they work altogether :-

    30+40 minutes

    = 70 minutes

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