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Given that a + b + c = 3960. If a : (b + c) = 3 : 8 and c : (a + b) = 4 : 5, then what is the value of b?

3016Medium DSSSB TGT Computer Science 0 replies 1 views
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Given that a + b + c = 3960. If a : (b + c) = 3 : 8 and c : (a + b) = 4 : 5, then what is the value of b?

  • A1080
  • B1760
  • C1440
  • D1120
Correct answer: D

Explanation

a = 3/11 × 3960 = 1080 and c = 4/9 × 3960 = 1760, so b = 3960 − 1080 − 1760 = 1120.
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