1. Toefl Test Grammar

Please, explain. Why C is correct?
What is difference between three of every four and every four of three?

-------------------- migrating water birds in North America visit
the Gulf of Mexico's winter wetlands.
(A) Four of three every (B) Three every four
(C) Three of every four (D) Every four of three

2. Re: Toefl Test Grammar

Please, explain. Why C is correct?
What is difference between three of every four and every four of three?

-------------------- migrating water birds in North America visit
the Gulf of Mexico's winter wetlands.
(A) Four of three every (B) Three every four
(C) Three of every four (D) Every four of three
A and D are incorrect because when you have a fraction like this, the first number would always be lower than the second.
If you had 3 water birds, 4 of them could not visit Mexico! You only had 3 birds, so how could 4 of those 3......?
B is incorrect because you always say "three of...." or "three out of" every...... etc.
Therefore, C is correct.

3. Re: Toefl Test Grammar

Three of every four birds simply means every three birds out of an amount of four birds (simple math) while every four of three birds means every four birds out of three birds;this is mathematically incorrect because if we have three birds, how could we count four birds out of them?

4. Re: Toefl Test Grammar

Originally Posted by isedehi
Three of every four birds simply means every three birds out of an amount of four birds (simple math) while every four of three birds means every four birds out of three birds;this is mathematically incorrect because if we have three birds, how could we count four birds out of them?
That's right. Thank you.

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