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24 May, 13:12

20% of a is 11, what is a

75% of b is 12, what is b

80% of c is 20, what is c

200% of d is 18, what is d

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  1. 24 May, 15:36
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    20% of a is 11, what is a

    a = 55

    75% of b is 12, what is b

    b = 16

    80% of c is 20, what is c

    c = 25

    200% of d is 18, what is d

    d = 9

    Step-by-step explanation:

    20% of a is 11, what is a

    20a = 1100

    a = 55

    75% of b is 12, what is b

    75b = 1200

    b = 16

    80% of c is 20, what is c

    80c = 2000

    c = 25

    200% of d is 18, what is d

    200d = 1800

    d = 9
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