Вопрос школьника по предмету Математика
Цена карамели-75 руб,а цена шоколадных конфет-225 руб.За 1кг.
а)На сколько процентов шоколадные конфеты дороже карамели?
б)На сколько процентов карамель дешевле шоколадных конфет?
Ответ учителя по предмету Математика
а) карамель это 100%
75 руб —— 100%
225 руб —— х%
х = 22500/75 = 300%
шоколадные конфеты дороже карамели на 200% (в три раза дороже)
б) шоколадные конфеты это 100%
225 руб —— 100%
75 руб —— х%
х = 7500/225 = 33.3%
карамель дешевле шоколадных конфет на 66.7% (100%-33.3%=66.67%)
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