4. A and B take 6 hours and 9 hours respectively to complete the work. A works for 1 hour and then B works for two hours. (

Question

4. A and B take 6 hours and 9 hours respectively to complete the work. A works for
1 hour and then B works for two hours.
(0) How much work is done in these 3 hours ?
(ii) How much work is still left ?
and 20 days​

in progress 0
Alaia 3 weeks 2021-10-01T19:33:28+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-10-01T19:34:54+00:00

    is 11/18

    Step-by-step explanation:

    A takes 6 hours to finish work and B take 9 hours to finish the same work

    ∴ A’s 1 hour’s work = 1/6

    And B’s 1 hour’s work = 1/9

    And B’s 2 hours work = 1/9 × 2 = 2/9

    (i) Now A’s 1 hour work + B’s 2 hours work = 1/6 + 2/9

    = (3 + 4)/18

    = 7/18

    (ii) Work left = 1 – 7/18 = (18 – 7)/18

    = 11/18

    please make me as brainlist

Leave an answer

Browse
Browse

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