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# The wedge is kept below the 60 cm mark on the meter scalc. Known masses of 1kg and 2kg are hung at the 20 cm and 30 cm mark respectively. Where will a 4kg mass be hung on the meter scale to balance it ? (Neglect mass of meter scale.)

- 85 cm
- 90 cm
- 70 cm
- 75 cm

## The correct answer is: 85 cm

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