In an examination there ere 60 multiple choice questions. For every right answer 1 point is added and for every wrong answer 0.25 points are deducted from the total. No point is added or deducted for any unanswered question. An applicant answered 75% of the total number of questions and got a total point of 30. How many answers of the applicant were correct?

A painter has painted 1/3 of a rectangular wall that is 12 feet high. When he will paint another 50 square fee...

If one number exceeds another number by 12 and the smaller number is 1/3 time the larger number, then the larg...

A dealer had 24 mobile phones. He sold some of them at a profit of Tk. 950 each and he sold the rest at a loss...

A 20% reduction in price allows a customer to purchase 5 kgs of rice at Tk. 160. How much would he have to pay...

A dealer had 24 mobile phones. He sold some of them at a profit of Tk. 950 each and he sold the rest at a loss...

Two types of tea, Sreemangal Red costing Tk. 50 per kg and Sreemangal Black costing Tk. 70 per kg, are mixed t...