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Mathematics, 27.06.2019 11:30 hipposaresofluffy
Several students joined a radio-controlled model club. some had boats, some had airplanes, and some had cars. they divided into three equal groups according to which radio-controlled model each had. another 10 students joined the radio-controlled airplane group. there are now 15 students in this group. how many students joined the radio-controlled model club in the beginning?
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Several students joined a radio-controlled model club. some had boats, some had airplanes, and some...
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