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Subject Mathematics
2326. If the following image , ASB is a quarter of a circle. PQRS is a rectangle with sides PQ = 8 and PS = 6. What is the length of the arc AQB?
2328. A Company employs 15 persons, each working 44 hours a week. If 4 persons are absent, how many hours a week would the rest of the persons have to work to make up the time lost?
2329. A trader dealing in pressure cookers reduces the price by 20% as a result of which his sale went up by 80%. What is the net effect of his sales income?
2332. The value of a fraction is . If the numerator decreased by 2 and the denominator increased by 1, the resulting fraction is equivalent to . Find the numerator of the original fraction.
2334. A motorcycle cost Tk. 2500 when it is brand new. At the end of each year it is worth of what it was at the beginning of the year. What is the motorcycle worth when it is 3 years old?
2335. In a survey, 30% of the people surveyed owned a personal computer and 75% owned a cellular telephone. If 25% owned both a cellular telephone and a personal computer, then the percentage of the people who does not have either of the instrument?
2338. A boat goes 13 km upstream (against current) in 39 minutes. The speed of stream (current) is 3km/hr. what is the speed of the boat in still water?
2339. Mr. Tamal purchased stocks for Tk. 1500 and sold nd of it after its value doubled. He sold the remaining stock at 5 times of its purchase price. What is the total profit?
2340. The daily rate for a hotel room having 4 beds in Tk. 390 for one person and X taka for each additional person. If 3 people take the room for one day and each pays Tk. 210 for the room, then what is the value of X?
2344. An employee pays 3 workers - X, Y and Z a total of Tk. 610 in a week. X is paid 125% of the amount of Y is paid and 80% of the amount Z is paid. How much does X make a week?
2350. একটি ত্রিভুজের তিন বাহুর তিন বাহুর দৈর্ঘ্য (x+৯) মিটার, (২x+১) মিটার এবং ২(২x-১) মিটার। ত্রিভুজটির পরিসীমা ২৯ মিটার হলে ক্ষুদ্রতম বাহুটির দৈর্ঘ্য হবে-