A certain river has a current of 3 miles per hour. A boat takes twice as long to travel upstream between two points as it does to travel downstream between the same two points. What is the speed of the boat in still water ?
A. 3 miles per hour
B. 6 miles per hour
C. 9 miles per hour
D. 12 miles per hour
E. The speed cannot be determined from the given information
সঠিক উত্তরঃ
C.
9 miles per hour
Explanation:
Related Questions (Any University/Year)
- An employee pays 3 workers X,Y and Z a total of TK. 600 a week . X is paid 125% of the amount Y is paid and 80% of the amount Z is paid . How much does X make in a week ?
- If w is 10% less than x and y is 30% less than z , then wy is what percent less than xz ?
- The average are of a group of 15 employing is 24 years, If 5 more employees join the group., the average age increases by 2 years. Find the average age of the new employ?
- At Uttara High school each student studies exactly one foreign languages. Three-fifth of the students take Spanish and one-fourth of the remaining students take take German. If all of the others take French, What percent of the students take French?
- শতকরা বার্ষিক ৫ টাকা হার সুদে ৭২০ টাকা দুই বছর চার মাসের সুদ কত হবে?
- Which of the following is the next number in the series : 2, 4, 3, 9, 4, 16, 5, 25, 6,-------?
- During a sale, the price of a pair of shoes is marked down by 10% from the regular price. After the sale ends, the price goes back to the original price. What is the percent increase (to the nearest whole number) form the discounted sale price to the regular price for the shoes?
- x+y=4, xy=5 হলে, x3+y32 এর মান কত ?
- Of the fruit that arrives at a cannery, 20 percent by weight is rejected before processing. Of the fruit that is processed, 15 percent by weight is rejected be fore canning. Of the fruit that arrives at the cannery, what percent by weight is canned?
- A man buys eggs at the rate of Tk. 7.2 per dozen eggs and sells them at taka 70 per 100 eggs. If his profit is Tk. 30, how many eggs did he buy?
- If the coordinate of A and B are (4, 1) and (-2, 7) respectively, then the coordinates of the midpoint of AB are :
- log321324= কত ?
- A manufacturer of TV wants to make a profit of Tk. 300,000 on sale of 200 TV sets. It costs Tk. 10,000 each to make the first 100 TV sets and Tk. 7,500 each to make TV sets after the first 100 sets. What should be the selling price of each TV sets in Taka?
- কোনটি ক্ষুদ্রতম সংখ্যা?
- রোমান লিপিতে M+C-M=কত?
- xyz =240 হলে y এর মান কোনটি হতে পারে না?
- কোন সংখ্যাটি বৃহত্তম?
- কোন ৩টি বাহু দিয়ে ত্রিভুজ গঠন করা যাবে না?
- |1x2dx এর মান কত?
- If the sum of four consecutive even integers is s, what is the greatest of the integers in terms of s?