The average length of three tapes is 6800 feet. None of the tapes is less than…
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The average length of three tapes is 6800 feet. None of the tapes is less than 6400 feet. What is the greatest possible length of one of the other tapes ?
- A.
8400 feet
- B.
7600 feet
- C.
9600 feet
- D.
7900 feet
Attempted by 15 students.
Show answer & explanation
Correct answer: B
Ans: 7600 feet
Total length = 3 * 6800 = 20400 feet.
Greatest length of one of the tape is possible, when other two tapes are of 6400 feet each.
So greatest possible length of one of the tape = 20400 -
2 * 6400 = 7600