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Outline Mathematics
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| A housewife purchased some sugar for $2.16. Had the sugar cost 1 cent a pound less, she would have received 3 pounds more for the same expenditure. How many pounds of sugar did she buy? |
Copyright © 1996-2010 Alexander Bogomolny
Solution 1
| A housewife purchased some sugar for $2.16. Had the sugar cost 1 cent a pound less, she would have received 3 pounds more for the same expenditure. How many pounds of sugar did she buy? |
(In the applet below, click on the underlined omitted expressions. See what happens.)
Copyright © 1996-2010 Alexander Bogomolny
Solution 2
| A housewife purchased some sugar for $2.16. Had the sugar cost 1 cent a pound less, she would have received 3 pounds more for the same expenditure. How many pounds of sugar did she buy? |
(In the applet below, click on the underlined omitted expressions. See what happens.)
References
- C. W. Trigg, Mathematical Quickies, Dover Publications, 1985
Copyright © 1996-2010 Alexander Bogomolny
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