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collection of tough problems from G PREP - 26

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collection of tough problems from G PREP - 26

by abhasjha » Mon Feb 08, 2010 3:13 am
How many odd integers are greater than the integer x and less than the integer y?

1) There are 12 even integers greater than x and less than y

2) there are 24 integers greater than x and less than y
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Source: — Data Sufficiency |
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by shashank.ism » Mon Feb 08, 2010 3:47 am
abhasjha wrote:How many odd integers are greater than the integer x and less than the integer y?

1) There are 12 even integers greater than x and less than y

2) there are 24 integers greater than x and less than y
Statement 1: for 12 even integers there can be 11, 12 or 13 odd integers. .........not sufficient
statement 2: for 24 integers , there can be 12 even 12 odd, 13 even 11 odd, 11 even and 13 odd ....not sufficient

combined: 12 even integer and 24 integers means only 12 odd integers

Ans is C
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by ajith » Tue Feb 09, 2010 4:02 am
abhasjha wrote:How many odd integers are greater than the integer x and less than the integer y?

1) There are 12 even integers greater than x and less than y

2) there are 24 integers greater than x and less than y
1. Insufficient [1 and 25 has 12 even integers and 11 odd integers ; 0 and 25 has 12 even integers and 12 odd integers]
2. Sufficient half of the 24 should be odd and half should be even - Sufficient

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