25% of a number is 15 more than 10% of the same number. What is the number?
Show Worked Solution
Worked Solution
Step 1: Let the number = n. Set up the equation:
25% × n = 10% × n + 15.
Step 2: 25%n − 10%n = 15. So 15%n = 15.
Step 3: n = 15 ÷ 15% = 15 ÷ 0.15 = 100.
Step 4: Check: 25% of 100 = 25. 10% of 100 = 10. 25 − 10 = 15. ✓
Answer: 100
Correct answer: 100
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