Number Thinking (2)( Week 28 Practice) 1. What is the largest possible integer n to satisfy 0 < < 1? 2. If 30 ≤ X ≤ 34, 13 ≤ Y ≤ 20, and 105 ≤ Z ≤ 111 with X, Y, and Z all being integers, what is the smallest value of ? 4. 90's factorial is the product of all natural numbers from 1 through 90. Let M = 1 × 2 × 3... × 90. How many continuous zeroes will M have at its end? 5. A symmetrical number is a number that reads the same from either direction, e.g. 11, 121, 1221 are symmetrical numbers. How many 8-digit symmetrical numbers are divisible by 11? |