Multiplied by 3 instead of dividing by 3. % increase?
- 200%
- 400%
- 600%
- 800%
Explanation
Let the original number be x
Correct result: x ÷ 3
Wrong result: x × 3
Now, compare:
Increase = (x×3 − x/3) = (9x − x)/3 = 8x/3
% Increase = (8x/3) ÷ (x/3) × 100 = 800%
Related MCQs
- 200
- 250
- 300
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 25%
- 30%
- 35%
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
ایک طالب علم معیاری ٹیسٹ میں 84 ویں فیصد پر ہے۔ اس کا سب سے زیادہ قابل دفاع مطلب کیا ہے؟
- About 84% of the reference group scored no higher
- The learner answered exactly 84% of the items correctly
- The learner's raw score is 84 points above the mean
- Exactly 84% of all test items were easier for the learner