Difficulty: Easy
Correct Answer: 1054
Explanation:
Introduction / Context: Express percentage statements algebraically to solve for the unknown number, then apply the required percentage to find the requested value.
Given Data / Assumptions:
Concept / Approach: Combine like terms on the left to isolate N, then multiply N by 0.62 to get 62% of the number.
Step-by-Step Solution:
(0.78 − 0.59)N = 0.19N = 323.N = 323 / 0.19 = 1700.62% of N = 0.62 * 1700 = 1054.Verification / Alternative check: 78% of 1700 = 1326; 59% = 1003; difference = 323, confirming N.
Why Other Options Are Wrong: Values like 1159 or 1178 result from using 68% or 69% by mistake; 1037 reflects arithmetic slips.
Common Pitfalls: Treating the 323 as 19% itself rather than as the result of 19% of N.
Final Answer: 1054
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