The difference between 78% and 59% of a number is 323. What is 62% of that number?

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:

  • Let the number be N.
  • 0.78N − 0.59N = 323.
  • Find 0.62N.

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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