Rob Beckett and Dan Antopolski join Alex to discuss the news this week, although to call it news would be a huge disservice to current affairs. It’s neither current nor affairs driven. It’s like the news equivalent of the reduced section in the supermarket.
I got the time t equation as (Dr = distance run): t= [Dr+2*SQRT(Dr^2-150Dr+6250)]/(run speed)so differentiating to get the minimum gives: 1+(2Dr-150)/SQRT(Dr^2-150Dr+6250)=0(independent of run speed) giving Dr=60.56624 (squaring and solving quadratic)phew!
Really enjoy the show. But, whilst working out the 'word sum', I noticed that the solution given on the programme is in fact non-unique: the sum 8542 + 0915 = 09457 is also a solution. Just thought I'd share...