A pie is cut into two equal parts.

The first part of the pie is shared between Abdul and Kate.
Kate has 3 times as much as Abdul.
The second part of the pie is shared between Sarah and Ron.
Ron has 3/5 as much as Sarah.
The mass of Sarah's share of the pie is 200 grams.
What was the total mass of the pie in grams?

1 answer

Mass = 2*(200+(3/5)*200) = 640 Grams.