#### ABSTRACT ALGEBRA-6

Proposed by Marian Ursarescu-Romania ABSTRACT ALGEBRA-6 Solution 1 by Andrew Okukura-Romania, Solution 2 by Mokhtar Khassani-Mostaganem-Algerie

#### TETRAHEDRON-12

Proposed by Thanasis Gakopoulos-Greece TETRAHEDRON-12 Solution 1 by Tran Hong-Dong Thap-Vietnam, Solution 2 by proposer

#### SOLUTION UP206-RMM AUTUMN EDITION 2019

Proposed by D.M.Batinetu-Giurgiu, Neculai Stanciu-Romania SOLUTION UP206 Solution by proposers

#### SOLUTION JP199-RMM AUTUMN EDITION 2019

Proposed by Marian Ursarescu-Romania SOLUTION JP199 Solution by proposer

ROMANIAN MATHEMATICAL MAGAZINE-WINTER EDITION 2019 15-RMM WINTER EDITION 2019 15-RMM WINTER EDITION 2019-SOLUTIONS-compressed

#### NUMBERS THEORY-3

Proposed by Seyran Ibrahimov-Maasilli-Azerbaijan NUMBERS THEORY-3 Solution 1 by Serban George Florin-Romania, Solution 2 by Naren Bhandari-Bajura-Nepal

#### INTEGRAL INEQUALITY-226

Proposed by Seyran Ibrahimov-Maasilli-Azerbaijan INTEGRAL INEQUALITY-226 Solution 1 by Soumava Chakraborty-Kolkata-India, Solution 2 by Tran Hong-Dong Thap-Vietnam

#### LIMIT-217

Proposed by Daniel Sitaru-Romania LIMIT-217 Solution by Samir Haj Ali-Damascus-Syria

#### LIMIT-216

Proposed by John Horton Conway-Grenoble-France LIMIT-216 Solution 1 by Marian Ursarescu-Romania, Solution 2 by Khaled Abd Imouti-Damascus-Syria, Solution 3 by…

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#### SOLUTION UP207-RMM AUTUMN EDITION 2019

Proposed by Marian Ursarescu-Romania SOLUTION UP207 Solution by proposer