#### PROBLEMS 4301-4400 CRUX MATHEMATICORUM

100 solved problems PROBLEMS 4301-4400 CRUX-compressed

#### PROBLEMS 4201-4300 CRUX MATHEMATICORUM

100 solved problems PROBLEMS 4201-4300 CRUX-compressed SOLUTIONS 4201-4300 CRUX-compressed

#### PROBLEMS 4101-4200 CRUX MATHEMATICORUM

100 solved problems PROBLEMS 4101-4200 CRUX-compressed SOLUTIONS 4101-4200 CRUX-compressed

#### PROBLEMS 4001-4100 CRUX MATHEMATICORUM

100 solved problems PROBLEMS 4001-4100 CRUX-compressed SOLUTIONS 4001-4100 CRUX-compressed

#### PROBLEMS 3901-4000 CRUX MATHEMATICORUM

100 solved problems PROBLEMS 3901-4000 CRUX-compressed SOLUTIONS 3901-4000 CRUX-compressed

#### PROBLEM 4085-CRUX MATHEMATICORUM

Proposed by Jose Luiz Diaz Barrero-Barcelona-Spain PROBLEM 4085-CRUX Solution by Myagmarsuren Yadamsuren-Darkhan-Mongolia

#### PROBLEM 4124-CRUX MATHEMATICORUM

Proposed by George Apostolopoulos-Messolonghi-Greece PROBLEM 4124-CRUX Solution 1 by George Apostolopoulos-Messolonghi-Greece, Solution 2 by Soumava Chakraborty-Kolkata-India

#### PROBLEM 4127-CRUX MATHEMATICORUM

Proposed by D.M.Batinetu-Giurgiu,Neculai Stanciu-Romania PROBLEM 4127-CRUX Solution by Soumitra Mandal-Chandar Nagore-India

#### PROBLEM 4074-CRUX MATHEMATICORUM

Proposed by Abdilkadir Altintas-Afyonkarashisar-Turkey PROBLEM 4074-CRUX Solution by Apostolis Manoloudis-Greece

#### PROBLEM 4081-CRUX MATHEMATICORUM

Proposed by Daniel Sitaru-Romania PROBLEM 4081-CRUX Solution 1 by Kelvin Hong-Rawang-Malaysia, Solution 2 by Marian Ursarescu-Romania