All three go with a No.10 offical to examine the fence.
 
English contractor takes out a tape measure & does some measuring, then works some figures with a pencil.
 
“Well,” he says, “I figure the job will run to about £500:  £200 for materials, £200 for my crew and £100 profit for me.”
 
Scottish contractor also does some measuring, figuring, then says, “I can do this job for £600: £250 for materials, £250 for my crew and £100 profit for me.”
 
The Indian contractor doesn’t measure or figure, but leans over to the No.10 official and whispers, “£1500.”
 
The official, incredulous, says, “You didn’t even measure like the other guys! How did you come up with such a high figure?”
 
The Indian contractor whispers back, “£500 for me, £500 for you, and we hire the English contractor to fix the fence.”  “Done!” replies the government official.