Answer:
B
Explanation:
Mathematically, the numbers that are divisible by 7 here forms an arithmetic sequence, with 203 being the first term
Now, we need the last term
The last term before 800 is 798
Now, the nth term of a sequence (arithmetic) can be represented as;
Tn = a + (n-1)d
Kindly note that the numbers have 7 as their common difference
Thus;
798 = 203 + (n-1)7
798-203 = 7n - 7
7n = 798 -203 + 7
7n = 602
n = 602/7
n = 86