Gregory watches TV for an average of 90 minutes per day on weekdays and an average of 135 minutes per day on the weekends. What is the ratio of the average number of minutes he watches TV on weekdays to minutes he watches TV on weekends?

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)