A student loses 1 mark for every wrong answer and scores 2 marks for every correct answer . If he answers all the 60 questions in an exam and scores 39 marks , how many of them were correct ?
ক) 33
খ) 31
গ) 27
ঘ) 37
Related Questions
ক) 8
খ) 12
গ) 18
ঘ) 140
ক) 3
খ) 6
গ) 9
ঘ) 12
ক) http://vianet.com/index/htm
খ) F:EmailStandard
গ) Jahid@billme.com
ঘ) Chaminade.org/teachers/mailaddresses
জব সলুশন
