The bar graph given below shows the number of students appeared in an exam on different days of a week.

What is the average number of students appeared for a exam per day?

This question was previously asked in

DSSSB PRT General Section Official Paper - 11 Nov 2019 Shift 1

- 2500
- 2400
- 2600
- 2550

Option 4 : 2550

**Given:**

Days |
D1 |
D2 |
D3 |
D4 |
D5 |
D6 |

Number of students |
2200 | 1800 | 2500 | 2700 | 2900 | 3200 |

**Formula used:**

Average = Sum of observations/Number of observations.

**Calculation:**

Average number = (2200 + 1800 + 2500 + 2700 + 2900 + 3200)/6

⇒ 15300/6 = 2550

**∴ The average number of students appeared for a exam per day is 2550.**

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