Diff of Quant Interview Questions at eaa43f7

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 * What is the singles digit for 2²³⁰?
-* f A, B, and C are integers between 1 and 10 (inclusive). How many different combinations of A, B, and C exist such that A<B<C?
+* Let A, B, and C be integers between 1 and 10 (inclusive). How many different combinations of A, B, and C exist such that A<B<C?
 * What is 89²?