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Subject Mathematics
2076. Last year Asma bought two paintings. This year she sold them for BDT 2000 each. On one painting, she made 25% profit, and on the other painting she has 25% loss. What was he net loss of profit?
2077. Because Meena’s test turned out to be more difficult than she intended it to be, the teacher decided to adjust the grades by deducting only half the number of points a student missed. For example, if a student missed 25 points, she received a 87.5 instead of 75. Before the grades were adjusted the class average was M. What was the average after the adjustment, if the total mark of the rest is 100?
2079. Rahim mowed 75% of his lawn in 1.25 hours. Mizan, who works twice as fast, then stated the remaining work and finished it. How many minutes did Mizan work?
2085. A 12 gallon tub has a faucet that lets water in at a rate 3 gallons per minute, and has a drain that lets water out at a rate of 1.5 gallons per minute. If you start with 3 gallons of water in the tub, how long will it take to fill the tub completely?
2088. A boy multiplied 423 by a number and obtained 65589 as his answer. If both the five in the answer are wrong and call all other figures are correct, the correct answer is:
2092. At an election involving two candidates, 68 votes were declared invalid. The winning candidate secure 52% and win by 98 votes. The total numbers of votes polled is:
2095. If 9 examiners can examine a certain number of answer books in 12 days, working 5 hours a day; for how many hours a day would 4 examiners have to work in order to examine twice the number of answer book in 30 days?
2099. A car traveled 75% of the way from town A to town B at an average speed of 50 mph. The car travels at an average speed of S mph for the remaining of the trip. The average speed of the entire trip was 40 mph. What is the value of 5?
2100. Monir, Joy and Kamal had lunch together. Kamal’s meal cost 50% more than Joy’s meal and Monir’s meal cost as much as Kamal’s meal. If Joy paid Tk. 10 for his meal, what was the total paid for launch?