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प्रश्न
150 students are studying English, Maths or both. 62 per cent of students study English and 68 per cent are studying Maths. How many students are studying both?
बेरीज
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उत्तर
Total students = 150
Students who study English = 62% of 150
= `62/100 xx 150`
= 93
Students who study Maths = 68% of 150
= `68/100 xx 150`
= 102
Total students studying English or Maths = 93 + 102 = 195
∴ Students who study English and Maths both
= 195 – 150
= 45
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