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Question

The following chart shows the number of telephone conversations at a Call Centre for various call durations on a particular day.



How many minutes of telephone conversations took place on that day?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
332

To find the total minutes of telephone conversations that took place at the Call Centre on that particular day, we need to analyze the information given in the chart.

The chart shows the number of telephone conversations for various durations. The data can be broken down as follows:

Duration (minutes)Number of Calls
1 minute4
2 minutes14
3 minutes40
4 minutes30
5 minutes12

To calculate the total minutes of conversations, we multiply the duration of each call by the number of calls for that duration and sum up all these products:

  • Total minutes for 1-minute calls: \(1 \times 4 = 4\)
  • Total minutes for 2-minute calls: \(2 \times 14 = 28\)
  • Total minutes for 3-minute calls: \(3 \times 40 = 120\)
  • Total minutes for 4-minute calls: \(4 \times 30 = 120\)
  • Total minutes for 5-minute calls: \(5 \times 12 = 60\)

Adding all these together gives us the total minutes:

\(4 + 28 + 120 + 120 + 60 = 332\)

Thus, the total number of minutes of telephone conversations that took place on that day is 332.

Therefore, the correct answer is: 332.

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Important Questions from Mixed Data Interpretation

  1. Select the correct mirror image of the given combination when the mirror is placed at MN as shown below.

  2. Choose the alternative which closely resembles the mirror image of the given combination.

     

  3. Select the correct mirror image of the given combination when the mirror is placed at MN as shown below.

  4. Select the correct mirror image of the given figure when the mirror is placed at AB as shown below.

  5. Six letters N, P, R, S, T and U are written on different faces of a dice. Two positions of this dice are shown in the figure. Which is the letter on the face opposite to the face containing U?

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