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थीहरूको एउटा समूहमा 18 जनाले लेखा पढ्छन्. 19 जनाले
A. Bor C? [1] Ans: 5
गणित पढ्छन्, 16 जनाले इतिहास पढ्छन् 6 जना लेखामात्र पढ्छन्,
9 जना गणित मात्र पढ्छन्. 5 जना लेखा र गणित मात्र पढ्छन् र 2
जना गणित र इतिहास मात्र पढ्छन्। (भेन चित्र प्रयोग गर्नुहोस्)
In a group of students. IS read Account. 19 read Maths,
16 read History, 6 read Account only. 9 read Maths only,
5 read Account and Maths only, and 2 read Maths and
History only. (Use Venn-diagram)
(a)
कतिजना सबै विषय पढ्छन् ? How many read all the
subjects?
[3] ​