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How to pick such sentence

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by saurabh2525_gupta » Mon Nov 29, 2010 1:17 am
Several studies have found that the coronary patients who exercise most actively have half or less than half the chance of dying of a heart attack as those who are sedentary.
(A) have half or less than half the chance of dying of a heart attack as those who are sedentary
(B) have half the chance, or less, of dying of a heart attack than those who are sedentary do
(C) have half the chance that they will die of a heart attack, or less, than those who are sedentary do
(D) are at least fifty percent less likely to die of a heart attack as those who are sedentary
(E) are at least fifty percent less likely than those who are sedentary to die of a heart attack

Can anyone please explain what is the difference between D & E. I picked D but the right answer is E.
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by shovan85 » Mon Nov 29, 2010 1:47 am
saurabh2525_gupta wrote:Several studies have found that the coronary patients who exercise most actively have half or less than half the chance of dying of a heart attack as those who are sedentary.
(A) have half or less than half the chance of dying of a heart attack as those who are sedentary
(B) have half the chance, or less, of dying of a heart attack than those who are sedentary do
(C) have half the chance that they will die of a heart attack, or less, than those who are sedentary do
(D) are at least fifty percent less likely to die of a heart attack as those who are sedentary
(E) are at least fifty percent less likely than those who are sedentary to die of a heart attack

Can anyone please explain what is the difference between D & E. I picked D but the right answer is E.
D uses worng idiom, Less likely .... as. It should be Less likey... than.
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by gmat_perfect » Mon Nov 29, 2010 3:19 am
saurabh2525_gupta wrote:Several studies have found that the coronary patients who exercise most actively have half or less than half the chance of dying of a heart attack as those who are sedentary.
(A) have half or less than half the chance of dying of a heart attack as those who are sedentary
(B) have half the chance, or less, of dying of a heart attack than those who are sedentary do
(C) have half the chance that they will die of a heart attack, or less, than those who are sedentary do
(D) are at least fifty percent less likely to die of a heart attack as those who are sedentary
(E) are at least fifty percent less likely than those who are sedentary to die of a heart attack

Can anyone please explain what is the difference between D & E. I picked D but the right answer is E.
Mind the following three things:

1. As likely ................as
2. less likely ..............than
3. More likely ..................than
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by amir_hatef » Thu Dec 02, 2010 12:17 pm
Can anyone explain why A, B & C are wrong?? I agree on gmat_perfect about D&E but for the other choices how can we say they are out?? Thanks in advance.
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