Best countdown problem ever
 

100, 75, 50, 25, 11, 1
Target 278

(Use simple arithmetic on the the six numbers)

[quote=davieddy;159894]100, 75, 50, 25, 11, 1
Target 278

(Use simple arithmetic on the the six numbers)[/quote]

When was 11 allowed in Countdown?

(11*25) + (100/50) + 1

Is it ... the final countdown?

I assume you meant another 1 there instead of 11.

[SPOILER]100/25 = 4
50 + 1 = 51

4 * 51 = 204
75 - 1 = 74

204 + 74 = 278[/SPOILER]

Me gots a solution:

[SPOILER]11*25+(100+50)/75+1[/SPOILER]

Puzzling time: < 10 mins

[spoiler](75/25-1)*(100+50-11)[/spoiler]

I got Flatlanders solution to the problem as posed.

If the 11 is replaced by 1 then my solution is

(50 / 25) * (100 + 1) + 75 + 1

I don't know why my genrally trustworthy source
deemed this such a good puzzle.

I have received a correction:

The numbers are supposed to be 25 50 75 100 10 1
Target 278

[quote=davieddy;159995]I don't know why my genrally trustworthy source
deemed this such a good puzzle.

I have received a correction:

The numbers are supposed to be 25 50 75 100 10 1
Target 278[/quote]

[spoiler](75*100-((10+1)*50))/25=278[/spoiler]

[quote=10metreh;160010][spoiler](75*100-((10+1)*50))/25=278[/spoiler][/quote]
Assuming you are right (and I haven't checked) well done
and the author of the problem is redeemed:smile:

David

Also,

[SPOILER](75/25-(10+1)/50)*100[/SPOILER]=278