Arrange the following numbers in descending orders of magnitude: 22 three , 34 five ,
MATHEMATICS
WAEC 2009
Arrange the following numbers in descending orders of magnitude: 22three, 34five, 21six
- A. 21six, 22three, 34five,
- B. 21six, 34five, 22three
- C. 22three, 34five, 21six
- D. 34five, 21six, 22three
Correct Answer: D. 34five, 21six, 22three
Explanation
22three, 34five, 21six = (2 x 3)(2 x 3o), (3 x 51) = (4 x 50), (2 x 61) + (1 x 60)
= (6 + 2), (15 + 4), (12 + 1) = 8ten, 29ten, 13ten in descending order
29ten, 13ten, 8ten = 34five, 21six, 22three
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