05E test

[austorior]

for 1+2+3+4...+15 I always do (first number + last number)*number of terms/2... but it somehow didn't work on this problem :<
5+5^2+5^3+...+5^10... i got 4.88*10^7 but that wasn't the right answer.

If we drive IH35 at an average speed of 65 mph, it takes one hour and fifty minutes to reach our kid's house. We prefer the back roads, which are 20% longer, even if it takes us 45 min more. What is our average speed on the back roads? (what is a IH35 anywayz? lol)

A 4 ft high picket fence is beingr built. The builder adds 5 sq ft in 20 minutes. When the fence is 20 ft long, a painter starts painting the fence at a rate of 8 linear feet of fence per hour. How long does it take for the painter to catch up with the builder?

[sinkokuyou]

the first one, it's a geo sequence not a ari sequence, so the answer should be 5*(1-5^10)/(1-5)=12200000...

Interstate 35 (I-35) is a north–south Interstate Highway in the central United States. I-35 stretches from Laredo, Texas, on the U.S.-Mexico border to Duluth, Minnesota, at Minnesota Highway 61 (London Road) and 26th Avenue East.

I'll leave the 3rd problem to some else to answer... :]

[stupidityismygam]

[88bobcat]

[austorior]

thanks guys... apparently I can do all of them if i think about them a little longer. But apparently the exam is timed... and apparently I need to do more similar problems so that I will be able to not think and still do them... apparently that will make me faster XD

[88bobcat]

[austorior]

yea those scores are timed. But they are just practice scores, not competition scores... Usually my competition scores are a lot lower for some reason... maybe I wake up too early? or sleep too late...

[sinkokuyou]

that's because UIL are much much easier than TMSCAs... like when practise, I can break 270 easily, sometimes I can get 300+... but when practising TMSCA tests, it's getting a lot harder... questions are different... that's why your TMSCA scores are a lot lower than ur UIL scores...
You know Kenny right? His TMSCA scores where always around 220, but in Dis/Reg/Sta, he got 275/294/251...

[austorior]

oh maybe that explains why... where do i get the TMSCA tests then? o.o Poche and Li's room?