Question

A desert has both fruit and yoghurt inside

Altogether the mass of the fruit and yoghurt is 175g
The ratio of the mass of the fruit to the mass of the yoghurt is 2:5
Which calculation will give the mass of the yoghurt?
175 divide 5 times 7 or 175 divide 7 times 5 or 175 divide 5 times 2 or 175 divide 7 times 2
What is the mass of the yoghurt (not the fruit and yoghurt - just the yoghurt, so it's not 175g)?

Answer 1

`2\ (the\ mass\ of\ the\ fruit)\ :\ 5\ (the\ mass\ of\ the\ yoghurt)\\\\\ \ \ \Rightarrow\ \ \ (5)/(7) \ of\ the\ all\ mass\ is\ the\ mass\ of\ the\ yoghurt\\\\ (5)/(7) \cdot 175\ g\ =5\cdot 25\ g=125\ g\\\\Ans.\ 175\ divide\ 7\ times\ 5.\ \ The\ mass\ of\ the\ yoghurt\ is\ 125\ g.`