In a class, 50% of the male students and 2/3 of the female students speak French. If there are 3/4 as many girls as boys, what fraction of the entire class specks French?

A 4/7
B 3/4
C 1/4
D 2/3

Correct Answer: 4/7

ধরি, বালকের সংখ্যা x বালিকার সংখ্য 3x/4 বালক - বালিকার মোট সংখ্যা ( x + 3x/4) জন = 7x/4 জন বালকদের মধ্যে ফ্রেঞ্চ ভাষায় কথা বলে x এর 50/100 জন = x/2 জন বালিকাদের মধ্যে ফ্রেঞ্চ ভাষায় কথা বলে 3x/4×2/3 = x/2 জন মোট ফ্রেঞ্চ ভাষায় কথা বলে ( x/2 + x/2) জন = x জন নির্ণেয় ভগ্নাংশ = x/7x/4 = 4/7
Bissoy MCQ
#গণিত #ভগ্নাংশ (Fraction) #Exim Bank Ltd #Exim Bank Ltd - Trainee Officer - 29.05.2015

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