Among them, 1/8 people scored below 70 points, and 1/7 people scored below 80 points. It can be seen that the total number of people is a common multiple of 7 and 8, and only 224 and 280 are greater than 200.

When the total number of people is 224,

How many people scored 80 to 89?

224 * (1-1/7-1/4) = 88 people.

When the total number of people is 280,

How many people scored 80 to 89?

280 * (1-1/7-1/4) =1/0 people.