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DS - Gates

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DS - Gates

by harsh.champ » Fri Feb 19, 2010 7:46 am
A certain straight ground has four gates, G1, G2, G3 and G4 (in that order) leading off from the same side. How far apart are gates G2 andG3?

1. The distance between doors G2 and G4 is 10 meters.
2. The distance between G1 and G3 is 12 meters.
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Source: — Data Sufficiency |
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by Mom4MBA » Fri Feb 19, 2010 9:20 am
st1: insufficient
st2: insufficient

both together insufficient as

case 1: G1 G2 = 3; G2 G3 = 9; G3 G4 = 1
case 2: G1 G2 = 10; G2 G3 = 2; G3 G4 = 8
many such cases are possible

answer E
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by shashank.ism » Fri Feb 19, 2010 10:00 am
harsh.champ wrote:A certain straight ground has four gates, G1, G2, G3 and G4 (in that order) leading off from the same side. How far apart are gates G2 andG3?

1. The distance between doors G2 and G4 is 10 meters.
2. The distance between G1 and G3 is 12 meters.
st.1: G2G4 = 10 meters. no other detail ============ insufficient
st/2: G1G3 is 12 meters no other detail ============ insufficient
combined: aftercombining the twoalso we require atleast one more data
G1G4 = G1G3 + G2G4 - G1G3
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