Hi, The way I think of these kind of rates is a little diffrent: Hiker: Rate 4 miles an hour Biker: Rate 20 miles per hoer In 5 minutes the biker covers 5/20 of a mile which is 1/4 of a mile. The hiker walks 5 times slower (20 miles of the biker divided by 4 miles walked by the walker:-)..) so he wo...

Great explanations for the first two PB. When I see the type of problem/combination with a large group of people/objects that requires specific qualities I think of each specific group separately: 1. 12 with experience 2. 9 no experience Now, we need a group of 3 people: we want one with experience ...

I would go with E because the correct idiom is "x arising from ...and y arising from ..."; we need the plural costs because of "and" ; this conjunction most of the time indicates a plural.

Can you please tell me more about the 2.0 version you took? I would like to know how I can download it so I can take it too. I am taking the test on March 12.

Thank you.

Thank you

Thank you Ron,

I always follow your posts; I think you are awsome.
Your expalnations are clear, concise, and short.

would prove

My bet was on D:

an inanimate object cannot do much--it cannot prove anything. So the X...can be proven to be....

I would go with C:

...three times the price....that the drug's maker charges (three times the price that the maker charges).

will...certainly have departed

I agree with the explanation for the first Q, but I do not agree with the second one. Verbs of certainity go before the main verb, after the verb to be, and betwen any type of auxiliary verbs: I (surely, certainly, probably) know. I am probably confused. You are surely there, arn't you? I will proba...