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Thanks Gmat-help. You're right.

For option 2: y=2x 6 - x = y-6 Substituting y=2x 6-x = 2x -6 3x =12 x= 4, and y =2x=8 So, x+y = 8+4 = 12 Therefore, both A and B each are sufficient independently . Ans is D.

1. The minimum distance between a dressing room and the register is 8ft. So the distance has to be greater than 8 ft, II and III are greater than 8 ft. So, 1E is the ans. 2. The first digit can be 2,4, 6 or 8 and all the other digits can be 2,4, 6, 8 or 0. So, the total number is 4x5x5x5 = 500 2C is the ans 3. The P co-ordinate is (50, 0) and the Q co-ordinate is (-30, -40). The distance between (x1, y1) and (x, y) is given by: sqrt((x-x1)^2 + (y-y1)^2) sqrt((50-(-30)))^2 + (0-(-40))^2 = sqrt ((80^2) + (40^2))

Thanks for the explanation.

Although fruit can no longer grow once it is picked, it continues for some time to respire, taking in oxygen and giving off carbon dioxide, similar to the way human beings breathe. (A) similar to the way human beings breathe (B) similarly to human beings who are breathing © just like the breathing of human beings (D) as human beings when breathing (E) just as human beings do when they breathe The correct answer is E. Why not A?