Question

Herschel uses an app on his smartphone to keep track of his daily calories from meals. One day his calories from breakfast were more than his calories from​ lunch, and his calories from dinner were less than twice his calories from lunch. If his total caloric intake from meals was ​, determine his calories for each meal.

Answer 1

let the number of calories from lunch be called L. As such, breakfast is then L + 128, and dinner is 2L - 400. We can then sum the three meals and equate it to the total caloric intake, the known value of 1932.

So: 1932 = L + L + 128 + 2L - 400 = 4L - 272.

Lunch = 551

Breakfast = 551 + 128 = 679

Dinner = 2*551 - 400 = 702