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ഒരു പരീക്ഷ എഴുതിയവരിൽ 300 പേർ ആൺകുട്ടികളും 700 പേർ പെൺകുട്ടികളുമാണ്. ആൺകുട്ടികളിൽ 40% പേരും പെൺകുട്ടികളിൽ 60% പേരും പരീക്ഷയിൽ വിജയിച്ചുവെങ്കിൽ പരീക്ഷയിൽ എത്ര ശതമാനം കുട്ടികൾ തോറ്റു?

A54%

B42%

C46%

D52%

Answer:

C. 46%

Read Explanation:

ആൺകുട്ടികളിൽ 60% പേരും പെൺകുട്ടികളിൽ 40% പേരും തോറ്റു. (300 × 60/100) + (700 × 40/100) = 180 + 280 = 460 ശതമാനം = 460 × 100/1000 = 46%


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