Three workers can do a job in 12 days. Two of the workers work twice as fast as the third. How long would it take one of the faster workers to do the job alone?
A. 30
B. 35
C. 40
D. 42
সঠিক উত্তরঃ
A.
30
Explanation:
Related Questions (Any University/Year)
- A straight fence is to be constructed from posts 6 inches wide and separated by lengths of chain 5 feet long. If a certain fence begins and ends with a post, which of the following could be the length of the fence in feet? (12 inches = 1 foot). Indicate ALL such answers.
- A can work three times faster than B. A takes 60 days less than B to do a work. Find the number of days it would take to complete the work if both work together.
- A 112-meter rope is cut into three pieces with each piece twice as long as the previous one. How long is the longest piece?
- What is the greatest of consecutive integers Whose sum is 24?
- Instruction: Each problem consists of a question followed by two statements. Decide whether the data in the statements are sufficient to answer the question. Dipu (D) is 15 years older than his brother Enam (E). \((D = E + 15)\). How old is Dipu? (1) Twenty years ago, Dipu's age was twice that of Enam. (2) Ten years later, Enam's age will be \(\frac{3}{4}\) (assuming the symbol is a typo for a fraction like \(\frac{3}{4}\) or the solution is based on the logic of sufficiency) that of Dipu.
- In a class of 78 students 41 are taking French, 22 are taking German. Of the students taking French or German, 9 are taking both courses. How many students are not enrolled in either course?
- The cost of two litres of Oil and its container is Tk. 100. If the cost of the container is Tk. 23 less than the cost of one litre of Oil, what is the cost of one litre of Oil?
- The average (arithmetic mean) of four different positive integers is 20. What is the greatest possible value of any of these integers?
- একটি সংখ্যার ৭৫% এর সাথে ৭৫ যোগ করলে ফলাফল হিসেবে পূর্বের সংখ্যাটি পাওয়া যায়। সংখ্যাটি কত?
- B and C are points on a straight-line AD, where AB = BC = CD. What percent of AC is AD?
- The figure below shows a path around a triangular piece of land. Mary walked the distance of 8 miles from P to Q and then walked the distance of 6 miles from Q to R. If Taha walked directly from P to R, by what percent did the distance that Mary walked exceed the distance that Taha walked?
- Written as a percent 5 = ?
- A man spent exactly $2.50 on 3¢, 6¢ and 10¢ stamps. If he bought 10 3¢ stamps and twice as many 6¢ stamps as 10¢ times, how many 10¢ stamps did he buy?
- Jony has 30 pages to read for history class tonight. He decided that he would take a break when he finished reading 70% of the pages assigned. How many pages assigned. How many pages must he read before he takes a break?
- In Jiimiary, 55 percent of a hospital's 300 patients were women. In February, 30 percent of its 440 patients were women. What was the percent change in the number of women patients from January to February?
- সাকিবের ১০ ইনিংসের রানের গড় ৪৫.৫। ১১তম ইনিংসে কত রান করে আউট হলে সব ইনিংস মিলিয়ে তার রানের গড় ৫০ হবে?
- জুয়েলের বয়স তার পুত্র সুমন এর বয়সের দ্বিগুণ ।১০বছর পূর্বে তাদের বয়সের অনুপাত ছিল ৮:৩ । জুয়েল এর বর্তমান বয়স কত ?
- The average of 5 numbers is 40. If 2 more numbers, with an average of 21, are added to these numbers, what will be the average of the combined 7 numbers?
- If 7x - 5y = 13 and 2x7y: = 26, then 9x -12y=?
- The price of one kilogram (kg) sugar is \(175\%\) of the price of one kg salt. If 7 kgs of sugar and 5 kgs [of salt are purchased for a total of BDT 690, what is the difference in price between 2 kgs of salt and 1 kg of sugar?]