In an exam the sum of the scores of A and B is 120, that of B and C is 130 and that of C and A is 140. Then the score of C is :

In an exam the sum of the scores of A and B is 120, that of B and C is

1.	In an exam the sum of the scores of A and B is 120, that of B and C is 130 and that of C and A is 140. Then the score of C is :
A.	65
B.	75
C.	70
D.	60
Answer» C. 70

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In an exam the sum of the scores of A and B is 120, that of B and C is 130 and that of C and A is 140. Then the score of C is :

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