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ഒരു ക്ലാസ്സിലെ പരീക്ഷയ്ക്കു വിജയിച്ച കുട്ടികളിൽ അരുണിന്റെ റാങ്ക് മുകളിൽ നിന്നും 15-ാമതും താഴെ നിന്നും 30-ാമതും ആണ്. 7 കുട്ടികൾ പരീക്ഷ എഴുതാതിരിക്കുകയും ചെയ്തു. എങ്കിൽക്ലാസ്സിലെ മൊത്തം കുട്ടികളുടെ എണ്ണം എത്ര?

A50

B51

C60

D40

Answer:

B. 51

Read Explanation:

വിജയികളുടെ എണ്ണം = 15 +30 - 1 = 44 7കുട്ടികൾ പരീക്ഷ എഴുതിയില്ല ആകെ കുട്ടികളുടെ എണ്ണം = 44 + 7 = 51


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