Counting Stamps (Posted on 2003-03-06)

	Submitted by Ravi Raja
Rating: 2.8182 (11 votes)
Solution:	(Hide)
Let 'x' be the number of 2 Rupees stamps (obviously the number of 1 Rupee stamps is then equal to '6x') and 'y' be the number of 5 Rupee stamps. Then from the problem, we have: 8x + 5y = 75 8x = 5(15 - y) It is clear from the bove equation that 'x' is a multiple of 5 and the value of 'y' cannot be more than 14. Thus either x = 5 or x = 10, but x = 10 violates the condition of the problem by exceeding the total amount. Therefore, x = 5, giving y = 7. Therefore, the required answer is: The number of stamps of each type purchased by the man is: 5 Two-Rupee stamps, 30 One-Rupee stamps and 7 Five-Rupee stamps.

	Subject	Author	Date
	Puzzle Thoughts	K Sengupta	2022-12-23 06:16:16
	Puzzle Solution	K Sengupta	2021-12-24 07:58:00
	re: Totally unrelated , but interesting	Math Man	2011-07-10 11:51:19
	Stamps	Math Man	2011-07-10 11:48:43
	Stamp Thoughts	K Sengupta	2008-03-15 11:04:48
	re(4): Totally unrelated , but interesting	Bret	2005-08-24 03:07:09
	re(3): Totally unrelated , but interesting	Hugo	2004-12-23 10:43:31
	re(2): Totally unrelated , but interesting	Syzygy	2004-12-23 10:19:03
	re: Totally unrelated , but interesting	Hugo	2004-12-23 08:45:07
	Totally unrelated , but interesting	Syzygy	2004-12-22 15:05:56
	another easy one	Billy Bob	2004-03-28 10:57:00
	Solution	Lewis	2003-07-06 04:49:14
	The easy way	Gamer	2003-07-03 05:56:27
	re: postage	Erlys	2003-03-11 17:43:32
	Let's Try This Out For Size	Marc	2003-03-09 08:16:21
	No Subject	olga	2003-03-08 12:26:43
	No Subject	Kyra Kelly	2003-03-08 09:20:54
	Postage	Adam	2003-03-08 05:31:40
	re(2): postage	Ravi Raja	2003-03-07 03:35:42
	re: postage	Charlie	2003-03-06 03:54:22
	postage	Nick Murray	2003-03-06 02:35:38