What is the average of all integers between 300 and 450 that are exactly…
2025
What is the average of all integers between 300 and 450 that are exactly divisible by 13?
- A.
277
- B.
377
- C.
477
- D.
577
Attempted by 15 students.
Show answer & explanation
Correct answer: B
The first integer divisible by 13 after 300 is 312 and the last before 450 is 442. The average of this arithmetic progression is (312 + 442)/2 = 377.