Count the MoonsCompute the differences to pick the right guessFor example: Looking at the difference of all possible combinations we have 1715=2, 1720=3 1520=5. Since the clue said one was off by 5 and another was off by 3, we see that 20 is the right answer. 
Astrodynamics Training DazeCompute the escape velocityFor example: 2000 kb needs 16,000 m/s so how much does 8000 kg ship need? Possible solution? Ive been told that the scape velocity is independent of the mass of the escaping object. It does not matter if the mass is 1 kg or 1000 kg, escape velocity from the same point in the same gravitational field is always the same. The energy needed would be more, but the speed is the same. I'm going to try using the same speed, and see if this works. CONFIRMED! Just use the same escape velocity as the lighter object. 
A Fellow TraderCompute how many he started withFor example 1/5 to Muri, half to Mimi, half of the rest to Kelv, keeping 5. Solution: Before Kelv's gift he had 10, so before Mimi's gift he had 20. Since 4 fifths is 20, he must have started with 5*20/4= 25 (Quick way: 5*kept) Another example: 1/3 to Mimi half to Mimi, half to Kelv, keeping 4. So he must have had 8 before Kelv, 16 befor Mimi, if 2/3x=16, then x=(3/2)16=24 at the start. (Quick way: 6*kept) 
A Fellow Crazy MerchantCompute how much something costsDownload "Insane Merchant" Widget for Mac Users(you can get it on a Vista sidebar with Amnesty by using the code I have posted atwidgetbox) For example: "comm unit" has 3 vowels and 5 consonants and costs 1600 "VR rig" has 1 vowel and 4 consonants and costs 1000 and "ship" has 1 vowel and 3 consonants, so it costs: 800!

SatellitesCompute how many satellies are in orbitFor example: Satellite 6 is opposite Satellite 19. How many satellites? Solution: Double the difference, that is (196)*2=26 
Ship's Distance From a PlanetCompute how close your ship will fly from a Planet(Thanks to Anisa Nadir!)For example: Plant Mu, 16,000 km across, has a moon that orbits at a distance of 110,000 km, center to center. If a ship orbits the moon at 20,000 km, how close will it fly to the surface of Mu? Solution: 110,000(16,000/2)  20,000 = 82,000 
If there is a error, please tell me the puzzle's numbers. Often in the process of testing there are certain ones that work and others that don't, so to get it right, it is most helpful to know exactly what was your puzzle. If it is easy for you, you can send me a screen shot directly to my email: erzsabet AT mac.com
Thanks for you patience and help!
Have fun! Erzsabet Bergbahn
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