Question

In a school, on the first day 1 student was absent, on the second day 2 students were absent,on the third day 4 students were absent. On the fourth day 8 students were absent if same patterncontinued till 6th day, how many students would be absent on the 6th day?

Answer 1

this is a geometric sequence with a1 = 1

r = 2

=> the number of students who are absent in 6th day is the 6th number in this sequence

=> the number of students who are absent in 6th day is

`a_(6) =a_(1) .2^(5)=1.2^(5)=32`

=> the number of students in 6th day is 32 students

Explanation: