Marcab wrote:
Consider a sequence of numbers given by the expression 5 + (n - 1) * 3, where n runs from 1 to 85. How many of these numbers are divisible by 7?
A. 5
B. 7
C. 8
D. 11
E. 12
We start putting values of n from 1 to 85 and find that
n exp.
1 5
2 8
3 11
4 14
....................
....................
11 35
.....................
......................
18 56
So, The numbers are divisible by
...
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