Thursday, 15 October 2009

DAY 189
Want to gain instant celebrity in the world of mathematics? Prove "Goldbach's Conjecture," advanced in 1742, which states that every even number larger than 2 can be written as the sum of two prime numbers. Try it with 16, 38, 82, and 174

Answer:

16 = 5 + 11
38 = 19 + 19
82 = 29 + 53
174 = 47 + 127

DAY 190
What number must be added to 1/4 to get 2/7?

Answer:

1/28............2/7 = 8/28......... 1/4 = 7/28






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