Praxis 5511 Practice Question
Adrianne borrowed $255, repaying $1, $2, $4, etc., doubling each month. How many months to repay?
Correct Answer: A
Rationale: To determine how many months it takes Adrianne to repay her $255 loan, we analyze the repayment structure. Each month, she doubles her payment: $1, $2, $4, $8, $16, $32, $64, $128.
By the end of the 8th month, her total payments sum to $255 (1 + 2 + 4 + 8 + 16 + 32 + 64 + 128).
Option B (10 months) exceeds the required amount, while C (16 months) and D (20 months) far surpass it, as the exponential growth in payments means the debt is cleared much sooner. Thus, 8 months is indeed the correct timeframe to fully repay the loan.
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