Work and Wages


  1. Shantanu can do a piece of work in 12 days and Manu can do the same work in 10 days. If they work together, in what ratio Shantanu and Manu will receive their wages?











  1. View Hint View Answer Discuss in Forum

    Shantanu's 1 day's work = 1/2
    Manu's 1 day's work =1/10
    Shantanu's share : Manu's share =(1/12) : (1/10)

    Correct Option: A

    Shantanu's 1 day's work = 1/2
    Manu's 1 day's work =1/10
    Shantanu's share : Manu's share =(1/12) : (1/10)
    = (5/60) : (6/60)
    = 5 : 6


  1. 3 persons undertake to complete a piece of work for $1,200. The first person can complete the work in 8 days, second person in 12 days and third person in 16 days. They complete the work with the help of a fourth person in 3 days. What does the fourth person get?









  1. View Hint View Answer Discuss in Forum

    Let the fourth person complete the entire work in D days.
    Given :- Total amount = $1,200
    Now, according to the question,

    3
    +
    3
    +
    3
    +
    3
    =1
    8 12 16D

    1
    =
    1
    -
    1
    -
    1
    -
    1
    =
    16 - 6 - 4 - 3
    =
    1
    D 3 8 12 16 48 16

    ∴ D = 16
    Ratio of wages =
    1
    :
    1
    :
    1
    :
    1
    =6 : 4 : 3 : 3
    8 12 16 16

    Sum of ratios = 6 + 4 + 3 + 3 = 16
    ∴ Fourth person’s share =
    Fourth person’s ratio
    x Total amount
    Sum of all ratios

    Correct Option: C

    Let the fourth person complete the entire work in D days.
    Given :- Total amount = $1,200
    Now, according to the question,

    3
    +
    3
    +
    3
    +
    3
    =1
    8 12 16D

    1
    =
    1
    -
    1
    -
    1
    -
    1
    =
    16 - 6 - 4 - 3
    =
    1
    D 3 8 12 16 48 16

    ∴ D = 16
    Ratio of wages =
    1
    :
    1
    :
    1
    :
    1
    =6 : 4 : 3 : 3
    8 12 16 16

    Sum of ratios = 6 + 4 + 3 + 3 = 16
    ∴ Fourth person’s share =
    Fourth person’s ratio
    x Total amount
    Sum of all ratios

    Fourth person’s share =
    3
    x 1200 = $ 225.
    16



  1. If 6 persons working 8 hours a day earn $8400 per week, then 9 persons working 6 hours a day will earn per week:









  1. View Hint View Answer Discuss in Forum

    On the basis of above given question , we have
    Here , Total Earning = $8400
    Work done by 6 persons = in 8 hours
    And Work done by 9 persons = in 6 hours

    Required sum = 8400 x
    6
    x
    9
    8 6

    Correct Option: C

    On the basis of above given question , we have
    Here , Total Earning = $8400
    Work done by 6 persons = in 8 hours
    And Work done by 9 persons = in 6 hours

    Required sum = 8400 x
    6
    x
    9
    = $ 9450
    8 6


  1. A can do a piece of work in 8 days. A undertook to it for $320. With the help of B, he finishes the work in 6 days. B’s share is:









  1. View Hint View Answer Discuss in Forum

    As we know that ,
    Here, Total amount = $320

    (A + B)’s 1 day’s work =1
    6
    A’s 1 days’ work =1
    8

    ∴ B’s 1 days’ work = (A + B)’s 1 day’s work - A’s 1 days’ work
    B’s 1 days’ work =
    1
    -
    1
    =
    1
    6 8 24

    ∴ Money should be divided in the ratio =
    1
    :
    1
    = 3 : 1
    8 24
    ∴ B gets = $
    B 's ratio
    x Total amount
    Sum of both ratios

    Correct Option: A

    As we know that ,
    Here, Total amount = $320

    (A + B)’s 1 day’s work =1
    6
    A’s 1 days’ work =1
    8

    ∴ B’s 1 days’ work = (A + B)’s 1 day’s work - A’s 1 days’ work
    B’s 1 days’ work =
    1
    -
    1
    =
    1
    6 8 24

    ∴ Money should be divided in the ratio =
    1
    :
    1
    = 3 : 1
    8 24
    ∴ B gets = $
    B 's ratio
    x Total amount
    Sum of both ratios
    ∴ B gets = $
    1
    x 320= $ 80
    4



  1. Two men, A and B, working together, completed a piece of work. If worked individually, it would have taken them 30 and 40 days to complete the work. If they have received a payment of $2100, then B’s share is:









  1. View Hint View Answer Discuss in Forum

    As per the given above question ,
    Given that :- Total received payment = $2100

    B’s 1 days’ work =1
    30
    A’s 1 days’ work =1
    40
    ∴ Share of A and B should be in the ratio =1 : 1= 4 : 3
    3040

    Correct Option: A

    As per the given above question ,
    Given that :- Total received payment = $2100

    B’s 1 days’ work =1
    30
    A’s 1 days’ work =1
    40
    ∴ Share of A and B should be in the ratio =1 : 1= 4 : 3
    3040
    B’s share = $
    3
    x 2100 = $900
    7