Deval

This page lists questions and answers that were posted by visitors named Deval.

Questions

The following questions were asked by visitors named Deval.

How many different ten digit telephone numbers contain four 2's, three 3s, and three 7s? I tried sorting the numbers out in order 2 2 2 2 | 3 3 3 | 7 7 7 10!/2!3!7! But I couldn't find the correct solution as the answer was 4200
8 years ago

Answers

The following answers were posted by visitors named Deval.