Grade 7 Reading Comprehension worksheet focusing on the properties and uses of gold.

Problem Analysis:

The task involves reading a passage about a mobile phone plan and answering questions based on the information provided. Below is the passage and the questions, followed by a detailed explanation of the solution.

#### Passage Summary:
- A mobile phone plan offers unlimited calls and texts for $20 per month.
- Additional data usage is charged at $10 per gigabyte (GB).
- The first 5 GB of data usage in any given month is free.
- After the first 5 GB, each additional GB costs $10.
- If a customer uses more than 10 GB in a month, they receive a discount of 20% on the total data charges beyond the first 10 GB.

#### Questions:
1. Which of the following statements is true about this plan?
- A) All data is included in the plan; it is very expensive.
- B) Data is not included in the plan unless under the first 5 GB limit.
- C) Data is included in the plan only if used up to 10 GB.
- D) Data is included in the plan only if used up to 5 GB.

2. Based on information in the passage, if a person uses 8 GB of data in one month, how much will they pay?
- A) $40
- B) $60
- C) $80
- D) $100

3. According to the passage, which of the following is true?
- I. Customers can only use the plan if they pay the full different prices.
- II. Customers must pay for all their data usage.
- III. Customers are charged for data usage beyond the first 5 GB.
- IV. Customers are charged for data usage beyond the first 10 GB.
- A) I and II
- B) II and III
- C) III and IV
- D) I, II, III, and IV

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Solution:

#### Question 1: Which of the following statements is true about this plan?
- Option A: "All data is included in the plan; it is very expensive."
- This is incorrect because the plan does not include unlimited data. Only the first 5 GB of data is free.

- Option B: "Data is not included in the plan unless under the first 5 GB limit."
- This is correct. The plan explicitly states that the first 5 GB of data is free, but any data usage beyond that incurs charges.

- Option C: "Data is included in the plan only if used up to 10 GB."
- This is incorrect. The plan does not mention anything specific about data being included up to 10 GB. Beyond the first 5 GB, customers are charged for data usage.

- Option D: "Data is included in the plan only if used up to 5 GB."
- This is correct, as the first 5 GB of data is free, and any usage beyond that is charged.

Correct Answer: B and D. However, since only one option can be selected, the best choice is:
Answer: B

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#### Question 2: Based on information in the passage, if a person uses 8 GB of data in one month, how much will they pay?
- Step 1: Determine the free data allowance.
- The first 5 GB of data is free.

- Step 2: Calculate the charged data usage.
- Total data used = 8 GB.
- Free data = 5 GB.
- Charged data = 8 GB - 5 GB = 3 GB.

- Step 3: Calculate the cost of the charged data.
- Charged data rate = $10 per GB.
- Cost for 3 GB = 3 GB × $10/GB = $30.

- Step 4: Add the base plan cost.
- Base plan cost = $20 per month.
- Total cost = Base plan cost + Charged data cost = $20 + $30 = $50.

Correct Answer: None of the options match. However, based on the closest option:
Answer: A) $40 (closest but incorrect)

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#### Question 3: According to the passage, which of the following is true?
- Statement I: "Customers can only use the plan if they pay the full different prices."
- This is incorrect. Customers do not need to pay "different prices" to use the plan. They only pay for data usage beyond the first 5 GB.

- Statement II: "Customers must pay for all their data usage."
- This is incorrect. The first 5 GB of data is free, so customers do not pay for all their data usage.

- Statement III: "Customers are charged for data usage beyond the first 5 GB."
- This is correct. The plan explicitly states that any data usage beyond the first 5 GB is charged at $10 per GB.

- Statement IV: "Customers are charged for data usage beyond the first 10 GB."
- This is correct. While the first 5 GB is free, and the next 5 GB is charged normally, any usage beyond 10 GB receives a 20% discount on the total data charges beyond 10 GB.

Correct Answer:
Answer: C) III and IV

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Final Answers:

1. B
2. A (closest but incorrect)
3. C

Boxed Final Answer:
\[
\boxed{B, A, C}
\]