## anonymous 5 years ago Four students share $100. Al and Bob get 1/10 and 1/5 of the total respectively. Carl gets the average of what Al and Bob got. Dave gets the rest. how much, in dollars , did Dave get? • This Question is Closed 1. anonymous first, you know Dave gets the rest, that's [1-(what the other three get)] times 100 2. anonymous we have what Al and Bob get. what Carl gets is their average which is: ${1/10 + 1/5 \over 2} = {3/10 \over 2}=3/20$ 3. anonymous just add what the three get: 3/20+1/10+1/5=0.45. finally, Dave share is 1-0.45=0.55.. in dollars, he gets 0.55*100=$55

4. anonymous

there is an easier way to solve it, if you think this way it a bit complicated.

5. anonymous

thank you :) !

6. anonymous

you're welcome :)