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GMATBuddha
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Keshav1404
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KarishmaB
kj1993
VeritasKarishma egmat GMATNinja please help with option A,B, and C why B and C and C are incorrect


The obvious big errors in (B) and (C):

(B) ... thereby reducing their rate of burning energy until it is 25 percent lower when compared with isolated birds.

Here, "rate of burning energy" is 25% lower when compared with birds. The comparison is illogical. The rate is 25% lower than it (the rate) would be for isolated birds.

(C) ... and they thereby reduce by 25 percent the rate they burn energy, as compared to what it would be with

"the rate they burn energy" is incorrect. It must be "the rate at which they burn energy". They burn energy at that rate.
Also, the use of 'with' here implies the rate with birds which is illogical. It is the rate for birds.


Hi Ma'am, KarishmaB

If Comparison in Option B is rectified as below-

B. thereby reducing their rate of burning energy until it is 25 percent lower when compared with that of

Then what option between A & B will be considered correct?

Is there any difference between the Compared with / Compared to?

Thanks in Advance!
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