If (a+a+a)=(b+b+b+b)and (a+b)=7, then what is the value of (a2-b2)?

Created: 4 months ago | Updated: 3 months ago
Job Solution Mercantile Bank Ltd Mercantile Bank Ltd - Management Trainee Officer - 05.07.2013 গণিত
324
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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?

Created: 4 months ago | Updated: 2 months ago
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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?

Created: 4 months ago | Updated: 2 months ago
Job Solution Mercantile Bank Ltd Mercantile Bank Ltd - Management Trainee Officer - 05.07.2013 গণিত
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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?

Created: 4 months ago | Updated: 2 months ago
Job Solution Mercantile Bank Ltd Mercantile Bank Ltd - Management Trainee Officer - 05.07.2013 গণিত
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