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12 April, 22:28

Josephine bought 8 packets of biscuits. Each packet had a mass of 500 g

She repacked them into 3 boxes. The first box was twice as heavy as the

second box. The third box was 60 g heavier than the second box.

What was the mass of the second box?

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Answers (1)
  1. 12 April, 22:37
    0
    Answer: 985 g

    Step-by-step explanation:

    Total mass = 8 * 500g = 4000g

    Let the three new packs be X, Y, and Z, for first, second, and third pack respectively.

    4000g = X + Y + Z

    let's put X and Z in terms of Y, since we're trying to solve for the second pack.

    X = 2Y, and Z = Y + 60

    Therefore,

    4000 = X + Y + Z

    4000 = 2Y + Y + Y + 60

    4000 = 4Y + 60

    4000 - 60 = 4Y

    3940 = 4Y

    3940 : 4 = Y

    985g = Y = mass of the second pack
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