A scale has 90cm and 100cm long arms, if we place 100kg on 90cm what weight should we need to put at 100cm arm to balance the scale?
- 100Kg
- 90 Kg
- 112 Kg
- 113Kg
Explanation
A scale has 90cm and 100cm long arms, if we place 100kg on 90cm, 90kg weight should we need to put at 100cm arm to balance the scale
Related MCQs
