lsquo A rsquo contracts to sell a heap of bones to lsquo B rsquo weighs and delivers them at 100 ru...........

‘A’ contracts to sell a heap of bones to ‘B’, weighs and delivers them at 100 rupees per ton. ‘B’ agrees to take and pay for them on a certain day. Part of the bones is weighed and delivered to ‘B’. On whose risk does the residue lie?         (10 MARKS)