9 On the first day of a measles outbreak at a school 5 stude

On the first day of a measles outbreak at a school, 5 students were identified to have the measles. Each day for the following two weeks, the number of new cases doubled from those identified with the disease the day prior.

How many students are identified to have measles in all at the end of the 6th day of the outbreak?

286

315

345

378

1st day -- 5

Day 1 : 5

add 1st day +2nd day outbreak
Day 2: 5 + 10 = 15
Day 3: 15 + 20 = 35
Day 4: 35 + 40 = 75
Day 5: 75 + 80 = 155
Day 6: 155 + 160 = 315

OptionB

9. On the first day of a measles outbreak at a school, 5 students were identified to have the measles. Each day for the following two weeks, the number of new c

9 On the first day of a measles outbreak at a school 5 stude

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