Math Chapter Wise question with answer

Q01 Which of the following sets forms a group under multiplication: English · UP PCS (Pre) 1998 Q02 Given that the set Z of integers forms a group under the binary operation *, defined by a*b= a+b+1; a, b∈Z The inve... English · LT 2018/ TGT 2011 Q03 The power set P(X) of a set X is a group under the law of composition of: English · UP PCS (Pre) 2008 Q04 In a group of 300 people, 150 speak Hindi and 200 can speak English. How many can speak both Hindi and English? English · UP TGT 2021 Q05 A market research group conducted a survey of 1000 consumers and reported that 720 consumers liked product A and 45... English · UKPSC Lecturer (Mains) 2020 Q06 In a group of 70 persons, 37 like coffee, 52 like tea and each person likes at least one of the two drinks. How man... English · NVS PGT 10-06-2019