If 12 men can build a wall 180 m long in 54 days, how many days it will take to build a similar wall 160 m long, if 16 men working on it
A. 24
B. 36
C. 28
D. 35
সঠিক উত্তরঃ
B.
36
Explanation:

Related Questions (Any University/Year)
- The ratio of marbles owned by X and Y is 8:3. If X gives 8 marbles to Y, the ratio becomes 6:5. How many marbles does X have?
- A colony of 15,000 ants increased by 50% after being fed. Then after 4 weeks without food, the number of ants dropped by 60%. What percentage decline did the original population undergo?
- একটি ট্রেন ১৫ সেকেন্ডে চলে ২০ ফুট। একই দ্রুততায় ট্রেনটি ৩ সেকেন্ডে কত ফুট চলবে?
- Which of the following has the highest value?
- Thirty percent of the members of a swimming club have passed the lifesaving test. Among the members who have not passed the test, 12 have taken the preparatory course and 30 have not. How many members are there in the swimming club?
- It is 165 miles from Dhaka to Chittagong. If a bus takes 1.5 hours to travel the first 65 miles how long must the bus take to travel the final 100 miles in order average 50 miles for the current trips?
- On a certai project, the only grades awarded were 745 and 100. If 85 students completed the projects and the average of their grades was 85, how many of them did score 100?
- A salesman makes a 20 percent commission on the selling price of each set of encyclopedias he sells. If he sells 12 identical sets of encyclopedias and makes $1,800 in commissions, what is the selling price of each set?
- A sum of BDT 200 will be divided among 5 swimmers, named Emran, Durjoy, Chopol, Billal and Anabi, who have just finished a swimming competition. Everyone will receive at least BDT 5 and no two swimmers will receive the same amount of money. Emran has come \(1^{st}\) and will get BDT 80; Durjoy has come \(2^{nd}\), Chopol is \(3^{rd}\), Billal is \(4^{th}\) and Anabi is last. Moreover, the distribution of money is subject to the following conditions: • No one will get any fractional amount of money. • The swimmer who finishes earlier must receive more money than the swimmer(s) he defeats. What are the greatest and least amount of money, consecutively, that Durjoy can receive?
- 6 pints of a 20 percent solution of alcohol in water are mixed with 4 pints of a 10 percent alcohol in water solution. The percentage alcohol in the new solution is
- একটি বর্গক্ষেত্??ের বাহুকে চার গুণ বড় করলে ক্ষেত্রফল কত গুণ বৃদ্ধি পাবে?
- 55 men can finish á work in 42 days. How many additional men must be engaged to complete the work 9 days earlier?
- A number is divided by 4. The result is divided by 3. The final result is 2. What was the original number?
- Arif bought 17 pens of three colors black , green and red. They cost Tk 5,Tk 10 and Tk 25 each respectively . The total amount that Arif paid was Th 205. If Arif bought twice as many green pens as red pens ,how many black pens did buy ?
- Three friends - Anwar, Bobby and Dipu divided Tk. 1105 amongst them in such a way that if Tk. 10, Tk. 20 and Tk. 15 were removed from the amount that Anwar, Bobby and Dipu received respectively, then the share of the amount they got would be in the ratio of 11 : 18 : 24. How much did Dipu receive?
- If an inspector rejects 0.08% reject of a product as defective, how many products will he examine in order to reject 2?
- The sides of two differ by 2 cm and their volumes differ by 152 cm^3. What is the length of the side of the smaller one?
- A certain machine can make 3 widgets every 27 seconds. At this rate, how many widgets will be made in 1 minute?
- By selling goods for Tk. 153, Shabit loses 10%. For how much should he sell them to gain 20%?
- Point B is on the line segment AC. Which of the following is always true?