Of the 32 students in a certain class , 15 are in debating club and 20 are in music club. If 10 of the students are not in either club, how many of the students are in only one of the two clubs?

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

ব্যাখ্যা ও সঠিক সমাধান

উত্তর: 9

Out of 3210 are not in either of the clubsThus22 = 15 + 20 -bothBoth = 13Thereforeonly music = 15-13 = 2only Dance = 20 - 13 = 7Hence 7 + 2 =9

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