differentiate

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2010gmat: Master | Next Rank: 500 Posts; Posts: 371; Joined: Fri Mar 06, 2009 2:48 am; Thanked: 27 times; GMAT Score:740

by 2010gmat » Wed Nov 25, 2009 9:41 pm

which is the correct usage??

differentiate x from y
differentiate between x and y
differentiate x and y

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Source: Beat The GMAT — Sentence Correction | Wed Nov 25, 2009 9:41 pm

rockeyb: Legendary Member; Posts: 537; Joined: Sun Jul 19, 2009 7:15 amFollowed by: 1 member; Location: Nagpur , India; Thanked: 41 times

by rockeyb » Wed Nov 25, 2009 9:55 pm

A. differentiate X from Y .

It can not differentiate between , either its differentiate OR its between X and Y but both can not be together .

And you differentiate some thing FROM the other . You dont say differentiate Quantity A and Quantity B.

I hope this helps .

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capnx: Master | Next Rank: 500 Posts; Posts: 268; Joined: Sat Aug 15, 2009 9:22 amFollowed by: 1 member; Thanked: 19 times; GMAT Score:700

by capnx » Wed Nov 25, 2009 10:14 pm

dictionary says both "from" and "between" are ok

differentiate (someone or something) from (someone or something else): differentiate X from Y
differentiate between (someone or something and someone or something else): differentiate between X and Y

a similar idiom is distinguish, and both "from" and "between" ok as well.

distinguish X from Y
distinguish between X and Y

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