The correct option is E Other than those given as options
By the given information, day of work, friends name and language are arrange in following table
DayMonTuesWedThurFriSatSunFriend′s NameQNRPMSOLanguageEnglishSanskritFrenchChineseSpanishJapaneseGerman
From the above table, we get the answer of all questions.
As per given arrangement, Q and R attend their language class after two days i.e. Chinese and Japanese according to this new arrangement, P is related to the language German.