Four children made the following statements.
Bryan : Aria is 2 kg heavier than Liam.
Liam : Our masses are in consecutive order.
Raeann : The average of Bryan's mass and my mass is 26 kg.
Aria : I am the heaviest.

What is the total mass of Raeann, Aria and Bryan ?
Order of the mass of 4 children:
_____ , Liam, _____ , Aria (Heaviest)

Total mass of Raeann and Bryan
= 2 x 26
= 52 kg

For Raeann and Bryan,
Mass of the lighter one = 1 u
Mass of the heavier one = 1 u + 2

Total mass of Raeann and Bryan
= 1 u + 1 u + 2
= 2 u + 2

2 u + 2 = 52
2 u = 52 - 2
2 u = 50

1 u = 50 ÷ 2 = 25

The mass of the four children in consecutive order is 25, 26, 27 and 28.

Total mass of Raeann, Aria and Bryan
= 25 + 27 + 28
= 80

Answer(s): 80 kg