In an examination there were 50 multiple choice question, 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 80% of the total number of questions and got a total point of 35. How many answers of the applicant were wrong?

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If the length of a rectangle is increased by 20% and the width is decreased by 20%, the area is :

In a group of people solicited by a charity, 30% contributed Tk. 2400 each, 45% contributed Tk. 1200 each, and...

If X is an odd integer and Y is an even integer, which of the following statements is (are) always true? 1. X+...

If the price of apple is Tk. 80.00 a kilogram, and the price triples every 6 months, how long will it be until...

An employer pays 3 workers X, Y and Z a total of Tk. 36,600.00 a week. X is paid 125% of the amount Y is paid...