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Subject Mathematics
651. Among the 120 student of class, numbered 1 to 120, all even numbered students opt for Bangla, whose numbers are divisible by 5 opt for English and those numbers are divisible by 7 opt for Math. How many opt for none of these three subjects?
652. A shopkeeper makes a loss of 12 % by selling an item at 80% of its marked price. What will be the percent profit made by the shopkeeper if he sells the item as 95% of its marked price?
653. The arithmetic mean of the 5 consecutive integers starting with ‘p’ is ‘q’ what is the arithmetic mean of 9 consecutive integers that start with (P+2)?
654. A car travels 180 km from A to B at 60 Kilometers per hours and returns from B to A long the same route at 90 kilometers per hour. The averages speed, in kilometers per hours, for the round trip is:
655. A man has 72 green marbles and 108 red marbles. He decides to pack them into packets of the same size, each containing either all red or all green marbles. What is greatest numbers of marbles he can put in each packet?
656. A boat sails m miles upstream at the rate of r miles per hour. If the rate of the stream is a miles per hour, how long will it take the boat to return to its starting point?
661. The elevator in an eleven-storied office building travels at the rate of one floor per minute, which allows time for picking up and lettering down passengers. At the main floor and at the top floor the operator stops for 1 minute. How many complete (with return) trips will the operator makes during a 7-hour period?
662. Out of the 30,000 tickets for the cricket tournament in Dhaka, were sold at Tk. 300, were sold at Tk.250 and the rest were sold for Tk.125. How many tickets were sold at Tk. 125?
664. The water in a fish tank measuring 1 feet by 8 inches is 7 inches high. The water is poured into another tank measuring 14 inches by 20 inches. What will be the height of water, in inches, in the second tank?
666. Half of the students of a school play football and third of the rest play cricket. The remaining 300 students do not pay either of the games. How many students are there in the school?
667. The average weight for a group of 20 women is 130 pounds. If the averages weight for 75% of these women was 140 pounds, what was the average weight, in pounds, for the rest of the women?
668. One thousand shares of Luis Inc. were purchased at Tk.8.75 per share. The share price rose 215% in the first year after purchase, dropped 40% in the second year, and then dropped another 20% in the third year. what is the price per share at the end of the third year?
669. A bonus of Tk. 25,000 will be distributed among three salespersons in proportion of the amounts by which their sales exceed the basic quota of Tk. 200,000, Mrs. Asha sold Tk. 600.000, Mr. Bashir sold Tk. 450,000, and Mr. Saif sold Tk. 300,000, How much did Mr. Saif receive from this bonus?
671. Shahin has purchased a square sheet of plywood of 169 square feet area. To cover a wall he must cut off two from a side. What is the area, in square feet, of the wall?
672. Two third of the faculty members of a department are female .Twelve of the male faculty members are unmarried, while 60% of them are married .Two total number of faculty members in the department is :
673. A farmer has two rectangular fields. The larger field has twice the length and four times the width of the smaller field. If the smaller field has area k, then the area of the larger field is greater than the area of the smaller field by what amount?
674. A barge, when empty, travels twice as fast as when it is full. If it travels 20 miles north with a cargo, spends 30 minutes for unloading, and returns to its original port empty, completing the entire trip in 8 hours, what is the speed of the barge when it is empty?