Question: Randy got 90, 98, 92, and 94 in his first four quizzes. His goal is to get a 94 average on his 5 quizzes. What score should he get in the fifth quiz to reach his desired average?
Answer with step-by-step thinking: Since Randy wants to get an average of 94, then the sum of the 5 quizzes should be 94 x 5 = 470. The sum of Randy's score for the first four quizzes is 90 + 98 + 92 + 94 = 374. Thus, Randy needs to get 470 - 374 = 96 in his fifth quiz.
So the answer is 96.


Question: Evelyn’s family watched 10 hours of television last week. The week before, they watched 8 hours of television. If they watch 12 hours of television next week, what is the average number of hours of television that they watch per week?
Answer with step-by-step thinking: Over the three weeks, they will have watched a total of 10 + 8 + 12 = 30 hours of television. The average number of hours per week is 30 hours / 3 = 10 hours of television.
So the answer is 10.


Question: Lance has 70 cents, Margaret has three-fourths of a dollar, Guy has two quarters and a dime, and Bill has six dimes. How many cents do they have combined?
Answer with step-by-step thinking:
Margaret has 100 * 0.75 = $0.75. Guy has $0.25 + $0.25 + $0.10 = $0.60. Bill has 6 * $0.10 = $0.60. Lance, Margaret, Guy and Bill have $0.70 + $0.75 + $0.60 + $0.60 = $2.65. Thus they have $2.65 * 100 = 265 cents.
So the answer is 265.