Smallest Positive Prime

Ramarao Rama Rao
Which is the smallest positive prime which is some multiple of seven less than  A cube of a counting number less than ten? Answer: 7 cube 7 X 48=7   The sum of two numbers is ten. Their product is twenty.  Can you find the sum of the Reciprocals of the two numbers?  Answer: ½ this problem can be worked by simile. Tenuous equations, but the solution shown below is a more clever, More intuitive approach.

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