A boy of 30 kg balances a aman of 60 kg on a see-saw ata distance of 1.5 m from the fulcrum. The distance the man from the fulcrum is:
A plank of a See-saw is 8m long and is supported at the centre. Rahul, who weighs 80 Kgf sits at a distance of 3 m from the fulcrum. Manish sits 4m from the fulcrum to balance the plank. What is Manish's weight