The average of four consecutive odd numbers is 24. The largest number is?
- 20
- 27
- 36
- 45
Explanation
Let's denote the four consecutive odd numbers as x, x + 2, x + 4, and x + 6.The average is 24, so:
(x + x + 2 + x + 4 + x + 6) / 4 = 24
(4x + 12) / 4 = 24
4x + 12 = 96
4x = 84
x = 21
The largest number is x + 6 = 21 + 6 = 27.
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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
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