A delivery man has to deliver packets to four houses which are numbered as on a number line. He has packets for house numbers 9, -8, -3 and -12. If he has delivered the packet at house no. 9, write the order in which he should deliver the packets to minimise his walk.

A delivery man has to deliver packets to four houses which are numbere

1.	A delivery man has to deliver packets to four houses which are numbered as on a number line. He has packets for house numbers 9, -8, -3 and -12. If he has delivered the packet at house no. 9, write the order in which he should deliver the packets to minimise his walk.
Answer» Answer :After DELIVERING the packet at flat 9, the delivery man should deliver PACKETS at FLATS -3, -8 and -12 respectively.