To answer this question you should begin with the coin that has a higher value. If you start with the dime and then just add the correct number of pennies to total $0.40, you will see that you will need 3 dimes ($0.30) and 10 pennies ($0.10).
I used a guess and check strategy starting with 2 dimes.
<span>Given data shows that 1/3 time less time for fans to exit a game as it does for them to enter and find their seats.
Ingress for the stadium = 3,000 fans per hour
Ingress rate = (1 - 1/3) x Egress rate = 2/3 Egress rate
Egress rate = 3/2 ingress rate = 3/2 x 6,000 = 9,000 fans per hour</span>
