3. A and B together can do a piece of work in 35 days, while A alone can do it in 60 days. How long would B alone take to do it?​

Question

3. A and B together can do a piece of work in 35 days, while A alone can do it in 60 days. How long
would B alone take to do it?​

in progress 0
Skylar 1 month 2021-08-14T20:09:10+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-08-14T20:10:32+00:00

    Step-by-step explanation:

    A+B = 35 days

    in one day = 1 ÷ 35

    A alone = 60 days 

    1 day = 1÷60

    then B = ( 1÷35) – (1÷60)

    = 12 – 7 ÷ 420

    = 5 ÷ 420

    =1 ÷ 84 

    thus B= 84 days

Leave an answer

Browse
Browse

18:9+8+9*3-7:3-1*13 = ? ( )