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 October 10th, 2014, 03:51 AM #1 Member     Joined: Sep 2013 From: New Delhi Posts: 38 Thanks: 0 Math Focus: Calculus Can anyone solve this question for me plz plz plz ??? Q.In a row of girls, Mradula is 18th from the right and Sanjana is 18th from the left. If both of them exchange their position, Sanjana becomes 25th from the left, how many girls are there in the row ? (A) 40 (B) 41 (C) 42 (D) 35 plz answer`
 October 10th, 2014, 04:25 AM #2 Math Team     Joined: Jul 2011 From: Texas Posts: 2,922 Thanks: 1518 What do you think?
 October 10th, 2014, 12:40 PM #3 Senior Member   Joined: Jul 2014 From: भारत Posts: 1,178 Thanks: 230 Sanjana's new position is $\displaystyle 25^{th}$ from left. But it is the same as Mradula's earlier position which is $\displaystyle 18^{th}$ from the right. Then the total number of girls = (rank from left + rank from right) -1 = (18+25)-1 = 43-1 = 42.

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