Question

all togather 3 people have 120 coins. mark has 3 times as many as joel, and joel has1/2 as many as sandra . howmany coins does sandra sandra have?

Answer 1

Answer:

Let the coins with Sandra be x

Then Joel has x/2 coins and mark has

3x/2 coins.

There total is 120 coins

therefore ,

3x/2 + x/2 + x = 120

4x/2 + x = 120

2x + x = 120

3x = 120

x = 40

Therefore sandra has 40 coins