If a girl mistakenly multiply a number by 3 instead of dividing it by 3 the results was what percentage of the original number?
Solution
Assume the original number = 3 (choose a number divisible by 3).
Correct operation:
3 ÷ 3 = 1
Mistaken operation:
3 × 3 = 9
Now compare the mistaken result with the original number:
(9 ÷ 3) × 100 = 300%
Answer: 300% ✅