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D. 22/15 Time taken by x to complete 1 job =12 hr . Therefore rate = 1/12 per hr Similarly y,z rates are 1/15 and 1/18 per hr. combined rate = 1/15 + 1/18 => 15+18/15*18 and therfore time = total work/combined rate =1/15+18/15*18 => 15*18/15+18 => 22/15. Ans D Though i feel, after solving it, plug ...
- by target_gmat2012
Fri Jun 10, 2011 6:11 am- Forum: Problem Solving
- Topic: og math # 130
- Replies: 132
- Views: 58065
- by target_gmat2012
Wed May 25, 2011 12:00 pm- Forum: I just Beat The GMAT!
- Topic: Thank you! - 750 (Q - 51, V - 40), AWA - 6.0
- Replies: 25
- Views: 7873
- by target_gmat2012
Wed May 18, 2011 5:35 pm- Forum: GMAT Strategy
- Topic: need tips (from a student)
- Replies: 7
- Views: 3062
- by target_gmat2012
Wed May 18, 2011 12:36 pm- Forum: I just Beat The GMAT!
- Topic: Complete Debrief- 640 to 730 Q49 V41 AWA 6.0 Self Studied
- Replies: 2
- Views: 2902
- by target_gmat2012
Wed May 18, 2011 12:23 pm- Forum: I just Beat The GMAT!
- Topic: 750 (48Q, 45V, 6.0 AWA) - Slayed the GMAT
- Replies: 15
- Views: 11505
- by target_gmat2012
Wed May 18, 2011 12:18 pm- Forum: I just Beat The GMAT!
- Topic: "Few" words of advice after scoring 770 (Q51, V42)
- Replies: 23
- Views: 19773
- by target_gmat2012
Mon May 16, 2011 8:00 am- Forum: I just Beat The GMAT!
- Topic: GMAT 620 to 600=( to 710!!!!!!!!!!!!!! YAY!!!!!!!!!! THANKS
- Replies: 7
- Views: 3589
- by target_gmat2012
Wed May 11, 2011 12:44 pm- Forum: I just Beat The GMAT!
- Topic: 2 months in the GMAT Cave = 530 to 750! (Q48/V46/6.0)
- Replies: 46
- Views: 30087
- by target_gmat2012
Wed May 11, 2011 12:31 pm- Forum: I just Beat The GMAT!
- Topic: Clueless how I got a 750(Q-50,V-42)!
- Replies: 60
- Views: 32226
- by target_gmat2012
Wed May 11, 2011 12:25 pm- Forum: I just Beat The GMAT!
- Topic: GMAT – A game where the scoreboard is hidden from you.
- Replies: 16
- Views: 5288
- by target_gmat2012
Wed May 11, 2011 12:22 pm- Forum: I just Beat The GMAT!
- Topic: FROM 530 TO 640 TO 710 (Q49 V36 AWA 6.0): BY AN ARMY COLONEL
- Replies: 66
- Views: 32828
This is truely inspirational Hola amigos! Just took the GMAT took today and am overwhelmed with a 740(50 Q,41V) For the last 4 months, not a single day would have passed when I didn’t visualize myself writing this post here on this great community called “Beatthegmat� , At the onset, I’d lik...
- by target_gmat2012
Wed May 11, 2011 12:06 pm- Forum: I just Beat The GMAT!
- Topic: 3 yrs,4 attempts-Finally 740:The story of my metamorphosis
- Replies: 172
- Views: 97704
- by target_gmat2012
Wed May 11, 2011 11:47 am- Forum: I just Beat The GMAT!
- Topic: 750 (49Q, 44V) - Mastering the Intangibles
- Replies: 31
- Views: 24190
truly inspirational Hola amigos! Just took the GMAT took today and am overwhelmed with a 740(50 Q,41V) For the last 4 months, not a single day would have passed when I didn’t visualize myself writing this post here on this great community called “Beatthegmat� , At the onset, I’d like to than...
- by target_gmat2012
Mon Jan 10, 2011 6:31 pm- Forum: I just Beat The GMAT!
- Topic: 3 yrs,4 attempts-Finally 740:The story of my metamorphosis
- Replies: 172
- Views: 97704
- by target_gmat2012
Thu Dec 23, 2010 9:09 am- Forum: Critical Reasoning
- Topic: Airlines deregulation
- Replies: 11
- Views: 2525