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This question asks which key would be best for a pictogram representing 22 boys and 16 girls in a class. The options are:

- **Key A:** 1 symbol represents 1 person.
- **Key B:** 1 symbol represents 3 people.
- **Key C:** 1 symbol represents 4 people.

### Choosing the best key:
We need a key that allows easy division of both 22 boys and 16 girls.

- **Key A (1 = 1):** This would require 22 symbols for boys and 16 symbols for girls. While this is precise, it may result in too many symbols, making the pictogram crowded.
- **Key B (1 = 3):** Dividing 22 boys by 3 gives approximately 7.33 symbols (which would be awkward to represent), and 16 girls divided by 3 gives about 5.33 symbols. Since both results are not whole numbers, this key is not ideal.
- **Key C (1 = 4):** Dividing 22 boys by 4 gives 5.5 symbols, and 16 girls divided by 4 gives 4 symbols. While we can use half symbols (as with boys), this key is more manageable and clear compared to key B.

### Conclusion:
**Key C** is the best choice because it uses fewer symbols and allows for a relatively clear representation using half symbols when necessary.

Would you like further details or have any questions? Here are some related questions:

1. How

Jacob wants to draw a pictogram to show that there are 22 boys and 16 girls in a class. Which of these options would be the best key to use?

In this problem, you will learn how to choose the best key to use in a pictogram representing 22 boys and 16 girls in a class. Understand the options and pick the most efficient representation. Suitable for Grade 6 students.

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