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A telephone exchange has 9000 subscribers. If the number of calls originating at peak time is 10, 000 in one hour, the calling rate is
  • a)
    0.9
  • b)
    10/9
  • c)
    0.81
  • d)
    0.1
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A telephone exchange has 9000 subscribers. If the number of calls orig...
Calling rate is the number of calls per subscriber.
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Most Upvoted Answer
A telephone exchange has 9000 subscribers. If the number of calls orig...
Given:
- Number of subscribers in a telephone exchange = 9000
- Number of calls originating at peak time in one hour = 10,000

To Find:
- Calling rate

Explanation:
The calling rate can be calculated by dividing the total number of calls by the number of subscribers.

Step 1: Calculate the Calling Rate
Calling Rate = Number of calls / Number of subscribers

Step 2: Substitute the Given Values
Calling Rate = 10,000 / 9000

Step 3: Simplify
Calling Rate = 1.1111

Step 4: Round Off to the Nearest Tenth
Calling Rate ≈ 1.1

Step 5: Write the Answer in Fraction Form
Calling Rate = 10/9

Conclusion:
Therefore, the calling rate is 10/9 or option B.
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A telephone exchange has 9000 subscribers. If the number of calls originating at peak time is 10, 000 in one hour, the calling rate isa)0.9b)10/9c)0.81d)0.1Correct answer is option 'B'. Can you explain this answer?
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