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• 3961 A motorist must complete 180-mile trip is 4 hours. If he averages 50 miles an hour for the first three hours of the trip , how fast must ( in terms of mile per hour ) he travel in the last hour ? Math ›
• 3962 A motor-cycle covers 40km with a speed of 20 km/hr. Find the speed of the motor-cycle for the next 40km journey so that the average speed of the whole journey will be 30km/hr. Math ›
• 3963 A motor-cycle covers 40km with a speed of 20 km/hr. Find the speed of the motor-cycle for the next 40km journey so that the average speed of the whole journey will be 30 km/hr. Math ›
• 3964 A monkey climbs a 60m high pole. In first minute he climbs 6m and slips down 3m in the next minute. How much time is required by it to reach the top? Math ›
• 3965 A mixture of 20 kg of sprit and water contains 10% water. How much water must be added to this mixture to raise the percentage of water to 25% Math ›
• 3966 A milkman purchases the milk at Tk. x per liter and sells it a Tk. 2x per liter still he mixes 2 liters water with every 6 liters of pure milk. What is the profit percentage? Math ›
• 3967 A milkman pays Tk. 6.40 per liter of milk. He adds water and sells the mixture at Tk. 8 per liter. By doing this, he makes 37.5% profit. Find the proportion of water to milk received by the customers? Math ›
• 3968 A median of a triangle divides it into two Math ›
• 3969 A manufacturer sells three products i.e. A, B and C. Product A costs 200 and sells for 250, Product B costs 150 and sells for 180, Product C costs 100 and sells for 110. On which product, he has maximum percentage of profit? Math ›
• 3970 A man’s regular pay is Taka 30 per hour up to 40 hours. Overtime is twice the payment for regular time. If he was paid Taka 1680, how many hours overtime did he work? Math ›
• 3971 A man’s investment doubles in every 5 years. If he invested Tk. 5,000 in each of the years 2010, 2015, 2020 then what will be the amount received by him in 2025? Math ›
• 3972 A man walks 10m east but runs 5m west every day. How many days will it take him to cross a building 380m east? Math ›
• 3973 A man travels a certain distance at a rate of 20 miles an hour and returns at the rate of 30 miles an hour . What is his average speed ? Math ›
• 3974 A man travels 4 miles north, 12 miles east, and then 12 miles north. How for (to the nearest mile) is he from the starting point ? Math ›
• 3975 A man takes 3 hours 45 minutes to row a boat 22.5 km downstream of a river and 2 hours 30 minutes to cover a distance of 10 km up stream. Find the speed of the river current in km/hr. Math ›
• 3976 A man starts climbing a 11m high wall at 5 pm. In each minute he climbs up im but slips down 50cm. At what time will he climb the wall? Math ›
• 3977 A man spent ½ of his money and then lost ¼ of the remainder. He was left with Tk. 3,600. How much did he start with? Math ›
• 3978 A man row a certain distance along the stream and against the stream in 1 hour and 1.5 hours respectively. If the velocity of the current is 3 km/hr, what is the speed of a man in still water? Math ›
• 3979 A man is running at a speed of 3 km/hr in the direction of the train whose length is 500 meters. If the train is moving at a speed of 63 km/hr then how many seconds will this train take to cross the man? Math ›
• 3980 A man covers a total distance of 100 km on bicycle. For the first 2 hours, the speed was 20 km/hr and for the rest of the journey, it came down to 10 km/hr. The average speed will be Math ›
• 3981 A man could buy a certain number of notebooks for Tk. 300. If each notebook cost is Tk. 5 more, he could have bought 10 notebooks less for the same amount. Find the price of each notebook? Math ›
• 3982 A man can row 6 km/hr in still water. If the speed of the current is 2 km/hr, it takes 3 hrs more in upstream than in the downstream for the same distance. The distance is Math ›
• 3983 A man can reach a certain place in 40 hours. If he reduces his speed by 1/15th, he goes 5 km less in that time. Find the total distance covered by him. Math ›
• 3984 A man can do a piece of work in 5 days, but with the help of his son, he can do it in 3 days. In what time can the son do it alone? Math ›
• 3985 A man buys doughnuts at the rate of Tk. 35 per 100 price and sells them at Tk. 7.20 per dozen. If the profit is Tk. 30, how many doughnuts did he buy? Math ›
• 3986 A makes an article for Tk. 120 and sells it to B at a profit of 25%. B sells it to C who sells it for Tk. 198 making a profit of 10%. What profit percent did B make? Math ›
• 3987 A lame duck organization is one which needs Math ›
• 3988 A jar contains white, red and green marbles in the ratios 2:3:5. Six more green marbles are added to the jars, and then the ratio becomes 2:3: 7. How many white marbles are three in the jar? Math ›
• 3989 A jar contains red balls and green balls in the ratio 3:1. If the jar contains only the two types of balls, which of the following cannot be the number of balls in the jar ? Math ›
• 3990 A jar contains milk and water in the ratio 5: 1. If the quantity of milk is more than that of water by 8 liters, then what is the quantity of water? Math ›