In a class, 30% of the students are from Dhaka District and 20% of them from Dhaka city. What percent of the total students are from Dhaka city?

Created: 2 months ago | Updated: 3 weeks ago
Job Solution Mercantile Bank Ltd Mercantile Bank Ltd - Officer - 2004 গণিত
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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 the greatest number of marbles he can put in each packet?

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A boat sails m miles upstream at the rate of r miles per hour. If the rate of the stream is s miles per hour, how long will it take the boat to return to its starting point?

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A wheel rotates 10 times per minute and moves 20 feet during each rotation. How many feet does the wheel move in 1 hour?

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The average of five numbers is 25. After one if the numbers is removed, the average of the remaining is 31. What number has been removed?

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An ambulance travels 10 miles at a speed of 75 mi,es per hour. How fast must the ambulance travel on the return trip if the round-trip travel time is to be 20 minutes?

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