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OpenStudy (anonymous):
A,B,C and D go for a picnic. When A stands on a weighing mahine, B also climbs on, and the weight shown was 132 Kg. When B stands, C also climbs on, and the machine shows 130 Kg. Similarly the weight of C & D is found as 102 Kg and that of B and D is 116 Kg. What is D’s weight
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