Profit and Loss


  1. A, B and C entered into a business and the ratio of their investments was 5 : 4 : 3. After 4 months B invested $ 1,000 more and after 8 months C invested $ 2,000 more. At the end of one year the profit ratio was 15 : 14 : 11, then the investment of C at the beginning was









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    Here , Ratio of profit of A , B and C = 15 : 14 : 11
    Ratio of their investments = 5 : 4 : 3
    Let the investment of A = $ 5k
    The investment of B = $ 4k
    The investment of C = $ 3k
    ∴ Ratio of their equivalent capitals for 1 month = { 5k × 12 } : { 4k × 4 + ( 4k + 1000 ) × 8 } : { 3k × 8 + ( 3k + 2000 ) × 4 }
    Ratio of their equivalent capitals for 1 month = 15k : (12k + 2000) : (9k + 2000)

    15k
    =
    15
    12k + 200014

    Correct Option: A

    Here , Ratio of profit of A , B and C = 15 : 14 : 11
    Ratio of their investments = 5 : 4 : 3
    Let the investment of A = $ 5k
    The investment of B = $ 4k
    The investment of C = $ 3k
    ∴ Ratio of their equivalent capitals for 1 month = { 5k × 12 } : { 4k × 4 + ( 4k + 1000 ) × 8 } : { 3k × 8 + ( 3k + 2000 ) × 4 }
    Ratio of their equivalent capitals for 1 month = 15k : (12k + 2000) : (9k + 2000)

    15k
    =
    15
    12k + 200014

    ⇒ 14k = 12k + 2000
    ⇒ 2k = 2000
    ⇒ k = $ 1000
    ∴ C’s investment = 3k = $ 3000


  1. A began business with $ 45000 and was joined afterwards by B with $ 54000. After how many months did B join if the profits at the end of the year were divided in the ratio 2 : 1?









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    Let B remained in business for T months.
    Invested amount by A = $ 45000
    Invested amount by B = $ 54000
    Ratio of profit of A and B = 2 : 3
    Ratio of equivalent capitals = 45000 × 12 : 54000 × T = 10 : T

    10
    =
    2
    T1

    Correct Option: D

    Let B remained in business for T months.
    Invested amount by A = $ 45000
    Invested amount by B = $ 54000
    Ratio of profit of A and B = 2 : 3
    Ratio of equivalent capitals = 45000 × 12 : 54000 × T = 10 : T

    10
    =
    2
    T1

    ⇒ 2T = 10 ⇒ T = 5
    Clearly, B joined after (12 – 5) = 7 months.



  1. A starts business with $ 3500/- and after 5 months, B joins with A as his partner. After a year, the profit is divided in the ratio 2 : 3. What is B’s contribution in the capital?









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    As per the given question ,
    A’s investment of $ 3500 is for 12 months
    Let B’s investment be p for 7 months only.
    At the end of the year the profit is divided in the ratio 2 : 3 and it must be equal to the ratio of the product, (Amount × time)
    Here , T1 = 12 months , A1 = $ 3500 , T2 = 7 months , A2 = $ p

    T1 × A1
    = Ratio of Profit
    T2 × A2

    12 × 3500
    =
    2
    7p3

    Correct Option: C

    As per the given question ,
    A’s investment of $ 3500 is for 12 months
    Let B’s investment be p for 7 months only.
    At the end of the year the profit is divided in the ratio 2 : 3 and it must be equal to the ratio of the product, (Amount × time)
    Here , T1 = 12 months , A1 = $ 3500 , T2 = 7 months , A2 = $ p

    T1 × A1
    = Ratio of Profit
    T2 × A2

    12 × 3500
    =
    2
    7p3

    ⇒ p =
    12 × 3500
    ×
    3
    72

    or p = 9000
    ∴ B’s investment is $ 9000.


  1. In a business partnership among A, B, C and D, the profit is shared as follows:
    A’s share
    =
    B’s share
    =
    C’s share
    =
    1

    B’s shareC’s shareD’s share3

    If the total profit is $ 4,00,000, then, the share of C is









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    Given that , Total profit = $ 4,00,000
    A : B = 1 : 3
    B : C = 1 : 3 = 3 : 9
    C : D = 1 : 3 = 9 : 27
    ∴ A : B : C : D = 1 : 3 : 9 : 27
    Sum of ratios = 1 + 3 + 9 + 27 = 40

    ∴ C’s share in profit =
    ratio of C
    × Total profit
    Sum of ratios

    Correct Option: C

    Given that , Total profit = $ 4,00,000
    A : B = 1 : 3
    B : C = 1 : 3 = 3 : 9
    C : D = 1 : 3 = 9 : 27
    ∴ A : B : C : D = 1 : 3 : 9 : 27
    Sum of ratios = 1 + 3 + 9 + 27 = 40

    ∴ C’s share in profit =
    ratio of C
    × Total profit
    Sum of ratios

    C’s share in profit =
    9
    × 400000 = $ 90,000
    40



  1. A, B and C started a business by investing $ 40500, $ 45000 and $ 60000 respectively. After 6 months C withdrew $ 15000 while A invested $ 4500 more. In annual profit of $ 56100, the share of C will exceed that of A by









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    Given in question , Total profit = $ 56100
    ∴ Ratio of equivalent capitals of A, B and C for 1 month = { 40500 × 6 + ( 40500 + 4500 ) × 6 } : { 45000 × 12 } : { 60000 × 6 + ( 60000 - 15000 ) × 6 }
    Ratio of equivalent capitals of A, B and C for 1 month = (40500 × 6 + 45000 × 6) : (45000 × 12) : (60000 × 6 + 45000 × 6)
    Ratio of equivalent capitals of A, B and C for 1 month = (405 + 450) : (450 × 2) : (600 + 450) = 855 : 900 : 1050
    Ratio of equivalent capitals of A, B and C for 1 month = 171 : 180 : 210 = 57 : 60 : 70
    Sum of the ratios = 57 + 60 + 70 = 187

    Correct Option: D

    Given in question , Total profit = $ 56100
    ∴ Ratio of equivalent capitals of A, B and C for 1 month = { 40500 × 6 + ( 40500 + 4500 ) × 6 } : { 45000 × 12 } : { 60000 × 6 + ( 60000 - 15000 ) × 6 }
    Ratio of equivalent capitals of A, B and C for 1 month = (40500 × 6 + 45000 × 6) : (45000 × 12) : (60000 × 6 + 45000 × 6)
    Ratio of equivalent capitals of A, B and C for 1 month = (405 + 450) : (450 × 2) : (600 + 450) = 855 : 900 : 1050
    Ratio of equivalent capitals of A, B and C for 1 month = 171 : 180 : 210 = 57 : 60 : 70
    Sum of the ratios = 57 + 60 + 70 = 187

    Required difference =
    70 - 57
    × 56100
    187

    Required difference =
    13
    × 56100 = $ 3900
    187