Counting is sufficient enough lmao We need to find all the numbers that are formed by only even digits and $\equiv 2 (\mod 3)$ The even digit numbers less than 100 are 2,4,6,8,20,22,24,26,28,40.42.44.46.48.60.62.64.66.68.80.82,84,86,88,just check by hand which is $\equiv 0,1,2 \mod 3$ For the three digit numbers, just +200,400,600,800 and consider mod 3 For the four digit numbers, there is only 2000,2002,2004,2006,2008,2020,2022 so just check by hand. there are 44 pages that satisfy this problem