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which is greater than ½...

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which is greater than ½...

by pzazz12 » Fri Oct 08, 2010 5:13 am
Of the following, which is greater than ½ ?

A. 2/5
B. 4/7
C. 4/9
D. 5/11
E. 6/13
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by kmittal82 » Fri Oct 08, 2010 5:21 am
work the problem.. any number where the numerator is greater than half the denominator should be greater than 1/2.

By this method, (B) wins
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by Rahul@gurome » Fri Oct 08, 2010 5:22 am
Without actually calculating the values, just multiply the numerators of all answer choices by 2 and see in which choice the numerator is greater than the denominator.
(A) 2*2 = 4 < 5
(B) 4*2 = 8 > 7, so this is the correct answer.

The correct answer is (B).
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by pzazz12 » Fri Oct 08, 2010 11:50 pm
Rahul@gurome wrote:Without actually calculating the values, just multiply the numerators of all answer choices by 2 and see in which choice the numerator is greater than the denominator.
(A) 2*2 = 4 < 5
(B) 4*2 = 8 > 7, so this is the correct answer.

The correct answer is (B).
Thank u Rahul..... for explain me a simple method...
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by safreen » Fri Mar 16, 2018 7:17 pm
Rahul, Thanks for the answer.

May please kindly clear me why we should multiply the numerator by 2. ....
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by Jeff@TargetTestPrep » Thu Mar 22, 2018 3:01 pm
pzazz12 wrote:Of the following, which is greater than ½ ?

A. 2/5
B. 4/7
C. 4/9
D. 5/11
E. 6/13
Since 4/8 = 1/2, and since 4/7 is greater than 4/8, 4/7 is greater than 1/2.

Alternate solution:

We see that, in all answer choices except B, the numerator is less than 1/2 of its denominator. Only B has its numerator greater than 1/2 of its denominator; thus, B is the correct answer.

Answer: B

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