1. In a survey, one third children like only mango and 22 don't like mango at all. Also children like orange but 12 like none of them. एउटा सर्वेक्षणमा एक तिहाइ वालकहरूले ऑप मात्र मन पराउँछन् र २२ जनाले ऑप पटक्कै मन पराउँदैनन् । त्यस्तै - बालकले सुन्तला मन पराएको पाइयो । तर १२ जनाले चाहि यी दुवै फलहरू मन नपराएको पाइयो । a) Show the above information in Venn-diagram. माथिको जानकारीलाई भेन चित्रमा देखाउनुहोस् । b) Find the total number of students in the survey, जम्मा केटाकेटीहरूको सङख्या पत्ता लगाउनुहोस् । c) By how much is the number of children who do not like orange at all more or less than the number of children who do not like mango at all? सुन्तला पटक्कै मन नपराउने केटाकेटीहरूको सङ्ख्या, ऑप पटक्कै नपराउने केटाकेटीहरूको सङ्ख्याभन्दा कति बढी वा कम छ ? d) Find the number of children who do not like at least one fruit. कम्तिमा एक फलफूल मन नपराउने केटाकेटीहरूको सङ्ख्या पत्ता लगाउनुहोस् । ​