সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন
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?
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?
- ক. m/(r + 2s)
- খ. m/(r + s)
- গ. (m + r)/s
- ঘ. mr - s
সঠিক উত্তরঃ m/(r + 2s)
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- If two planes leave the same airport at 1:00 pm, how many miles apart will they be at 3:00 pm if one travels directly north at 150 mph and the other travels directly west at 200 mph?
- At the rate of m meters per s seconds, how many meters does a cyclist travel in x minutes?
- A car travels at the rate of 50 miles per hour. How many minutes will it take to travel 2/5 miles at this speed?
- On a trip of 200 miles, a man travels at the rate of 40 niles per hour for the first 100 miles. For the rest of the trip, he travels at the rate of 55 miles per hour. What is his average speed in miles per hour for the total trip?
- A motorcyclist rode to work at an average speed of 15 miles per hour and returned home along the same route at an average speed of 45 miles per hour. If his entire traveling time was 1 hour, what was the total number of miles in the round trip?
There are no comments yet.