Серёжа во время поймал трех окуней: масса одного окуня -400г, второг - на 60гр больше, а масса третьего окуня в 2 раза меньше общей массы первых двух. найдите массу всех трех окуней.
Emmz
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23.05.2019 20:20
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1
2)400+460= 860 гр первый и второй окунь
3)860:2=430гр.третий окунь