A man can row three-quarters of a kilometre (km) against the stream in 11.25 minutes and down the stream in 7.5 minutes. The speed (in km/hr) of the man is still water is :
A. 4 k km/hr
B. 5 km/hr
C. 6 km/hr
D. 6.5 km/hr
E. None of these
সঠিক উত্তরঃ
B.
5 km/hr
Explanation:
Related Questions (Any University/Year)
- How many numbers from 11 to 50 are there which are exactly divisible by 7 but not by 3?
- ৪৫০ এর ২২% = কত ?
- The present ages of three persons are in proportions 4:7:9. Eight years ago, the sum of their ages was 56. Find their present ages(in years).
- In June a baseball team that played 60 games had won 30% of its games played . After a phenomenal winning streak this team raised its average to 50% . How many games must the team have won in a row to attain this average?
- A candy dealer makes up a mixture of 3 parts of candy costing him Tk. 60 per pound with 2 parts of candy costing him Tk. 70 per pound and 2 parts of candy costing him Tk. 50 per pound. At what price per pound should he sell his mixture to make a profit of 25 percent?
- If the price of an item is increased by 10% and then decreased by 10% , the net effect on the price of the item is -
- ত্রিভুজের ABC এ ∠C সূক্ষকোণ হলে নিচের কোণ শর্তটি সঠিক হবে?
- A rectangular field is 3. 2 yards long. A fence marking the boundary is 11.2 yards in length. What is the area of the fields in square yard?
- Two banks offer interest rate of 6% and 7% respectively on savings account. Mr. Faruq deposited a total amount of Tk. 4000 in the banks and in one year his interest income was Tk. 250. Find the deposit in the bank with 7% interest rate?
- যদি θসূক্ষকোণ এবং sin(θ+18°)=12 হয়, তবে θ এর মান কত?
- এক কুইন্টাল সমান কত কিলোগ্রাম?
- P and Q start a business with initial investment in the ratio of 13: 8 Their corresponding annual profits are in the ration of 7: 5. If p invested his money for 7 months, find the time period for which Q invested his money.
- If the average of five consecutive even numbers is 8, which of the following is the smallest of the five numbers?
- If x and y are perfect squares, then which of the following is not necessarily a perfect square?
- 425 টাকার 4 বছরের সুদ 85 টাকা হলে সুদের হার শতকরা বার্ষিক কত টাকা হবে ?
- Which of the following is less than 1/6 ?
- If w= 4x, 12y=8x , 6y=2z and 9v=6z then what is the value of 'w' in terms of 'V'?
- একটি ত্রিভুজের তিনটি কোণের পরিমাপ যথাক্রমে x, x2,3x2 বৃহত্তম কোণটির মান কত?
- স্থির পানিতে নৌকার গতিবেগ ঘন্টায় ৭ কিমি। ঐরুপ একটি নৌকার স্রোতের অনূকুলে ৩৩ কিমি পথ যেতে ৩ ঘন্টা সময় লেগেছে। ফিরে আসার সময় নৌকাটির কত ঘন্টা সময় লাগবে?
- দুইটি সংখ্যার অনুপাত 5 : 8, উভয়ের সাথে 2 যোগ করলে অনুপাতটি 2 : 3 হয়। সংখ্যা দুইটি কি কি?