kanak durga

Thanks a lot for the clarification...I have a question... I have solved Official guide for PS and DS twice... Now I want to solve tougher questions which book or study material for PS and DS should I follow to solve difficult question and high scores...

Thanks a lot for your reply... I have one more question... Yesterday I have completed official guide twice... I want to solve questions more difficult than official guide now... Which book or study material would you like to refer to me for difficult questions which will help me score high in PS and DS....

Please help me justify the correct answer for the below PS question from mba.com test questions When a certain tree was first planted, it was 4 feet tall, and the height of the tree increased by a constant amount each year for the next 6 years. At the end of the 6th year, the tree was 1/5 taller than it was at the end of the 4th year. By how many feet did the height of the tree increase each year? 1) 3/10 2) 2/5 3) 1/2 4) 2/3 5) 6/5 The correct answer is (4) 2/3 can you please explain how we got this answer.

Please explain me the answer to the below question. I got this question from mba.com test questions. In the xy- plane does the line with equation y= 3x+2 contain the point (r,s)? 1) (3r+2-s)(4r+9-s)=0 2)(4r-6-s)(3r+2-s)=0 1) If statement (1) alone is sufficient 2) If statement (2) alone is sufficient 3) If both the statement combined is required to answer the question 4) If each statement alone is sufficient 5) If neither of the statement combined is enough to answer the question the correct answer is (3) I checked the answer (4) .. Can you please explain how we got this answer.