Taxes, Withholding, Insurance & Risk Sharing — Practice · Grade 12 Social Studies

Chapter: Household Finance & Major Decisions

What this practice covers

By the end of Taxes, Withholding, Insurance & Risk Sharing you should be able to:

8 questions, written answer, each with a worked explanation.

Vocabulary used: marginal tax rate, average tax rate, withholding, premium, deductible.

Problem 1

Why is the marginal rate different from the average rate in the example?
Answer and explanation

Only the income above $10,000 in the supplied range faces twenty percent, while the first portion faces ten percent. Total tax is $2,000, giving a 13.33 percent average. The next increment’s rate is twenty percent under this invented schedule.

Problem 2

Why is a refund not necessarily free extra income?
Answer and explanation

It can return money already paid beyond the final liability. Compare payments, liability, and other adjustments. The supplied $200 refund is an excess-payment return, not proof of a new $200 gain unrelated to prior withholding.

Problem 3

What assumptions support an $800 insurer payment in the example?
Answer and explanation

The $1,000 loss must be covered, with a $200 deductible and no other limiting provision in the simplified model. The payment is not valid for every contract or event. Premiums are a separate cost.

Problem 4

Why is the smallest premium insufficient to rank insurance options?
Answer and explanation

Coverage, exclusions, deductibles, limits, and the ability to bear remaining loss can differ. The price is one dimension. Compare relevant scenarios and contract terms without assuming every loss is covered.

Problem 5

Teaching-only brackets: first $10,000 at ten percent; next $10,000 at twenty percent; taxable income $15,000. No other provisions apply. Calculate tax, average rate, and marginal rate.
Answer and explanation

Tax is $2,000. The average rate is about 13.33 percent, and the marginal rate within the supplied second range is twenty percent. Applying twenty percent to all income would incorrectly give $3,000. These are invented teaching brackets, not current tax rates or a filing calculation.

Tax each portion separately.

Divide total by taxable income.

Identify the next increment’s bracket.

Response criteria

  • Explain the relevant institution or economic concept accurately; show correct calculations where needed.
  • Connect supplied evidence and stated assumptions to an explained conclusion.
  • Compare feasible options and their effects on different people without stereotypes.
  • Identify a limitation, tradeoff, uncertainty, or condition that qualifies the conclusion.

Problem 6

Does paying an insurance premium prove every loss is covered?
Answer and explanation

No. The contract defines covered events, eligibility, deductibles, limits, and exclusions. Compare the particular scenario with those terms. Payment of a premium establishes participation in an arrangement, not unlimited reimbursement.

Response criteria

  • Explain the relevant institution or economic concept accurately; show correct calculations where needed.
  • Connect supplied evidence and stated assumptions to an explained conclusion.
  • Compare feasible options and their effects on different people without stereotypes.
  • Identify a limitation, tradeoff, uncertainty, or condition that qualifies the conclusion.

Problem 7

Use the unit’s invented brackets with $12,000 taxable income. Calculate tax and average rate.
Answer and explanation

The first $10,000 yields $1,000 and the next $2,000 at twenty percent yields $400, totaling $1,400. The average is about 11.67 percent. These are teaching-only brackets, not current filing rules.

Response criteria

  • Explain the relevant institution or economic concept accurately; show correct calculations where needed.
  • Connect supplied evidence and stated assumptions to an explained conclusion.
  • Compare feasible options and their effects on different people without stereotypes.
  • Identify a limitation, tradeoff, uncertainty, or condition that qualifies the conclusion.

Problem 8

A fully covered invented $900 loss has a $150 deductible and no other limits or sharing. Premium is separately $80. Calculate claim payment and the insured’s stated costs.
Answer and explanation

The insurer pays $750. The insured bears $150 of the loss plus the separate $80 premium, totaling $230 under the supplied scenario. Coverage assumptions and exclusions are essential; this is not every real contract.

Response criteria

  • Explain the relevant institution or economic concept accurately; show correct calculations where needed.
  • Connect supplied evidence and stated assumptions to an explained conclusion.
  • Compare feasible options and their effects on different people without stereotypes.
  • Identify a limitation, tradeoff, uncertainty, or condition that qualifies the conclusion.

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