The ration of male student of female students ina class is 13 t0 19. If there are 224 people in the class, including one teacher. One administrator and thirty evaluations. How many people in the class are male students?

A 78
B 80
C 91
D 114

Correct Answer: 78

দেওয়া আছে, মোট লোক সংখ্যা = 224 1 জন শিক্ষক, 1 জন প্রশাসক ও 30 জন মূল্যায়নকারী বাদ দিলে অবশিষ্ট লোক সংখ্যা = 224 - (1 + 1 + 30) = 224 - 32 = 192 জন এই 192 জনের মধ্যে ছাত্র : ছাত্রী = 13:19 .:. ছাত্র সংখ্যা = 1313×19×192 = 1332×192 = 78 জন
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