A sum of money was divided between two friends, Karen and Natasha in the ratio 2:5. If Natasha recieved $210 more than Karen, find the sum they shared.
Let us say Karen received X amount of money. Then Natasha has received (X+210).
The ratio that the money divided was 2:5.
`X/(X+210) = 2/5`
`5X = 2(X+210)`
`3X = 420`
` X = 140`
Total money shared
So the total money shared was $490.