70 students are enrolled in Management, Accounting and Marketing. 40 students are in Management, 35 are in Accounting, and 30 are in Marketing. 15 students are enrolled in all three courses. How many of the students are enrolled in exactly two of the courses?

In what ratio should a 20% methyl alcohol solution be mixed with a 50% methyl alcohol solution so that the res...

Recently, Sohan's hourly wage has been increase, Sohan's total weekly wage was $137. If his weekly hours were...

A store has five shelves and average weekly sale is Tk. 30000. Shelf 1 accounted for 1/4 of the store's averag...

Rahim averaged 70 in his first m number of exams. After taking n more exams, he had an overall average of 75....

Two merchants each sell an article for Tk.1000. If Merchant a computes his profit on cost price, while Merchan...

Alim and Badrul enter in to a partnership and Alim invests Tk. 10,000 in the partnership. At the end of 4 mont...