Question
The figure shows the mass of 3 objects, T, U and V. V has a mass of 2.1 kg. The ratio of the mass of T to the mass of U is 4 : 1. What is the mass of U? Express your answer in kg.
2 m

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The figure shows the mass of 3 objects, T, U and V. V has a mass of 2.1 kg. The ratio of the mass of T to the mass of U is 4 : 1. What is the mass of U? Express your answer in kg.