[Question]Robert and Teddy are planning to buy snacks for their friends. Robert orders five boxes of pizza at $10 each box and ten cans of soft drinks at $2 each. Teddy buys six hamburgers at $3 each and an additional ten cans of soft drinks. How much do they spend in all?
[Answer]Five boxes of pizza cost 5 x $10 = $50. Ten cans of soft drinks cost 10 x $2 = $20. So, Robert spends $50 + $20 = $70. Six hamburgers cost 6 x $3 = $18. Thus, Teddy spends $18 + $20 = $38. Therefore, they spend $70 + $38 = $108 in all. The answer is 106.

[Question]Every day, Billie bakes 3 pumpkin pies for 11 days and puts them in the refrigerator. It takes 2 cans of whipped cream to cover 1 pie. If Tiffany comes over and eats 4 pies, how many cans of whipped cream does Billie need to buy to cover the remaining pies?
[Answer]In total Billie bakes 3 x 11 = 33 pies. After Tiffany eats the pies, this many pies are in the refrigerator: 33 - 4 = 29 pies. She needs to buy this many cans of whipped cream 29 x 2 = 58 cans. The answer is 58.

[Question]John manages to run 15 mph for his whole 5-mile race. The next fastest guy ran the race in 23 minutes. How many minutes did he win the race by?
[Answer]He runs the race in 5 / 15 = 1 / 3 of an hour. So he runs the race in 60 / 3 = 20 minutes. That means he beat the next fastest guy by 23 - 20 = 3 minutes. The answer is 3.

[Question]Gary has 30 grams of gold that cost $15 per gram. Anna has 50 grams of gold for the cost of $20 per gram. How much is the cost of their gold combined?
[Answer]
The cost of Gary’s gold is 30 * $15 = $450. The cost of Anna’s gold is 50 * $20 = $1000. The total cost of their gold is $450 + $1000 = $1450. The answer is 1450.