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NIELIT 2022 Feb Scientist C - Section D: 5

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Three workers $\text{A, B,}$ and $\text{C}$ complete a piece of work in $6$ days for which they are paid a sum of $\text{Rs. 1920.}$ If the efficiency of $\text{A, B,}$ and $\text{C}$ are in ratio $4:5:7,$ then find the daily income of $\text{C}$ ?

  1. $\text{Rs. 840}$
  2. $\text{Rs. 98}$
  3. $\text{Rs. 140}$
  4. $\text{Rs. 56}$

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