Question
Olivia is 15 kg heavier than Zoey. Rebecca is thrice as heavy as Olivia. Given that their total mass is 180 kg. Find the mass of Olivia.
4 m

Click button first when a symbol is required. X

Olivia is 15 kg heavier than Zoey. Rebecca is thrice as heavy as Olivia. Given that their total mass is 180 kg. Find the mass of Olivia.