Предмет: Математика, автор: n12631250

За 3 стула и 5 полок заплатили 576 р. Цена стула и полки одинаковая. Какова стоимость стульев, если за них заплатили на 144р. меньше, чем за полки?​


laikaroy11: ЧТО
volna7: Фраза: " Цена стула и полки одинаковая " - лишняя.

Ответы

Автор ответа: akiotmp42
0

Ответ:

72р

Пошаговое объяснение:

так как цена одинаковая , складываем количество стульев и полок и делим цену всей продукции , то есть : 576/3+5=576/8=72(р)- цена одного предмета. так как всего полок 5 , а стульев 3 : 5-3=2 , то есть стульев на 2 меньше. 72+72=144(р)

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