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

Click button first when a symbol is required. X

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