Question : Refer to the following data table and answer the question.
| Deep sleep | 20% |
| Dreaming | 20% |
| Light sleep | 30% |
| Extremely light sleep | 25% |
| Awake | 5% |
Between 10 pm to 6 am, a fitness band records the following data. How long was the user in Light sleep or Extremely light sleep?
Option 1: 4.4 hours
Option 2: 3.9 hours
Option 3: 2.9 hours
Option 4: 4.9 hours
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Correct Answer: 4.4 hours
Solution :
According to the data given,
Total time = 10 PM to 6 AM = 8 hours
The user in light Sleep or extremely light sleep = 30% + 25% = 55%
So, the time spend by user = $\frac{55}{100}\times8$ = 4.4
Hence, the correct answer is 4.4 hours.
Related Questions
Question : Between 10 pm and 6 am, a fitness band records the following data. Refer to the following data table and answer the question.
| Deep sleep | 15% |
| Dreaming | 15% |
| Light sleep | 5% |
| Extremely light sleep | 30% |
| Awake | 35% |
How long was the user in Deep Sleep or was Awake?
Option 1: 3.5 hours
Option 2: 2.5 hours
Option 3: 4.5 hours
Option 4: 4 hours
Question : Calculate the mean from the following table.
| Scores | Frequencies |
| 0-10 | 2 |
| 10-20 | 4 |
| 20-30 | 12 |
| 30-40 | 21 |
| 40-50 | 6 |
| 50-60 | 3 |
| 60-70 | 2 |
Option 1: 34.2
Option 2: 33.4
Option 3: 32.6
Option 4: 35.8
Question : The following table shows the marks distribution among the students in a class.
| Marks | No.of Students |
| Less than 10 | 2 |
| Less than 20 | 5 |
| Less than 30 | 6 |
| Less than 40 | 8 |
| Less than 50 | 10 |
How many students scored marks between 20 and 30?
Option 1: 2
Option 2: 5
Option 3: 1
Option 4: 6
Question : The following table shows the marks distribution among students in a class.
| Marks | No. of Students |
| Less than 10 | 2 |
| Less than 20 | 5 |
| Less than 30 | 6 |
| Less than 40 | 8 |
| Less than 50 | 10 |
How many students scored less than 20 marks?
Option 1: 5
Option 2: 7
Option 3: 2
Option 4: 6
Question : Refer to the following data table and answer the question.
| Division /Standard | Boys | Girls |
| A/5 | 20 | 30 |
| B/5 | 15 | 20 |
| C/5 | 30 | 10 |
| A/6 | 30 | 25 |
| B/6 | 30 | 25 |
| C/6 | 30 | 20 |
What is the ratio of number of the boys to girls?
Option 1: 26 : 31
Option 2: 31 : 26
Option 3: 33 : 28
Option 4: 28 : 33
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