Question

Andreea,Radu si Matei au cules impreuna 188 de castane . Radu a cules de doua ori mai multe decat Andreea si cu 13 mai putine castane decat Matei. Cate castane a cules Matei?

Answer 1

Andreea ------

Radu      ------------                                                      } 188                                   

Matei     -------------13

188 - 13 = 175 ( 1 p + 2 p + 2 p = 5 parti egale )

175 : 5 = 35 ( o parte ) - Andreea

2 x 35 = 70 ( Radu )

2 x 35 + 13 = 70 + 13 = 83 ( Matei )

V . 35 + 70 + 83 = 105 + 83 = 188