- A12
- B14
- C13
- D15
Step-by-Step Solution
They form the progression 14, 21, ..., 98 with a = 14 and d = 7. From 14 + (n − 1)7 = 98 we get (n − 1)7 = 84, so n − 1 = 12 and n = 13.
Answer: C) 13
How many two-digit numbers are divisible by 7?
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