ps ques from BTG forum ps set:

17. When the integer n is divided by 17, the quotient is x and the remainder is 5. When n is divided by 23, the quotient is y and the remainder is 14. Which of the following is true?

(A) 23x + 17y =19
(B) 17x –23y = 9
(C) 17x +23y =19
(D) 14x + 5y = 6
(E) 5x – 14y = -6

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OA is B.

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sudhirsk: Junior | Next Rank: 30 Posts; Posts: 15; Joined: Mon Nov 27, 2006 4:55 pm

by sudhirsk » Fri Jul 06, 2007 10:01 pm

Statement1:
n = 17x +5
Statement2:
n = 23y + 14

Equating 1 & 2
17x + 5 = 23y +14
17x-23y = 9 ==> (B)

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moneyman: Master | Next Rank: 500 Posts; Posts: 468; Joined: Sat Mar 03, 2007 10:17 pm; Thanked: 5 times

by moneyman » Sat Jul 07, 2007 7:37 am

The approach is very smart..But what is the OA??

Maxx

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