Three workers can do a job in 12 days. One of the workers works twice as fast as each of the other two. How long would it take the faster worker to do the job alone?
A. 18 days
B. 19 days
C. 24 days
D. 27 days
E. 36 days
সঠিক উত্তরঃ
C.
24 days
Explanation:
Related Questions (Any University/Year)
- 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?
- Monti always jogs to school at a speed of 6 km/h , walks home along the same route at a speed of 3 km/h. If he spend exactly 1 hour Total traveling both ways, how many km is his school from his home?
- The ratio of labor cost and materials cost for making a radio is 2:7. If the cost price is 90% of the selling price which is Tk. X, what is the labor cost per radio?
- একটি ঝুড়িতে আপেল এবং কমলা মিলিয়ে ৭০ টি ফল আছে। প্রতিটি আপেল এবং কমলা ১৯ টাকা দরে কেনা হয়েছে । সবগুলো ফল কিনতে যদি ১৩৩০ টাকা খরচ হয় এবং আপেল এর চাইতে চারটি কমলা কম থাকে। তবে ঝুড়িতে কয়টি আপেল ছিল?
- . If a, b and c are 3 consecutive integers in that order, which of the following has the lowest value?
- If p + q = 2(r + s) which of the following is the average of p, q, r and s in terms of r and s?
- চিনির দাম ২০% কমল, কিন্ত চিনির ব্যবহার ২০% বৃদ্ধি পেল। এতে চিনি বাবদ ব্যয় শতকরা কত বাড়ল বা কমল?
- 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
- The average weekly salary per head of all employees is tk .1000 (Supervisors and labours). the average weekly per head salary of all supervisors is TK. 6000 while the average weekly salary per head of all labours is TK .750 ,if there are 840 labours in it find the number of supervisors
- A company has 3,600 employees of which 1/3 are clerks. If the clerical staff is reduced by 1/3, what percent of the total number of remaining employees would be clerical staff?
- A sport goods store ordered an equal number of white and yellow tennis balls. The tennis ball company delivered 30 extra tennis ball, making the ratio of white balls to yellow balls 6:5, How many tennis ball did the sport goods store originally order?
- A room at Zaber Hotel International can accommodate 4 people. The rate is 3900 one person and Tk. X for each additional people. If 3 people take the room for one night and pays Tk. 2100 per person, what is the value of X?
- ৭২৯ লিটারের মিশ্রণে দুধ এবং মধু ৭ঃ২ অনুপাতে থাকে । এই অনুপাতটি ৭ঃ৩ এ পরিবর্তন করার জন্য এতে কী পরিমাণ মধু মেশাতে হবে?
- n denotes the number obtained when n is rounded to the nearest tenth. For example 4.31=4.3 0.089-1.135=
- Francis had a average of 75 on her first four Geography tests, After taking the next test, her average dropped to 72. How much did she get in the fifth test?
- Each questions is followed by two statements. Decide whether the data in the statements are sufficient to answer the question. Select your answer according to whether: If x and y are integer, is \(y > 0\)? (1) \(x+1>0\) (2) \(xy > 0\)
- Two nations produce 1/5 and 3/10 respectively , of The world production of aluminum. What fraction of the world production do the others nation's Produce?
- Alam starts working on a job and works on work. Then babu joins Alam and together they complete the est of the work in 12 days . How long (in days) will it take Babu to complete the job if he works alone ?
- যখন প্রতি ফুট দড়ি ১০ টাকায় বিক্রি হয়, তখন ৬০ টাকায় তুমি কত ফুট দড়ি ক্রয় করতে পারবে?
- একটি দ্রব্য ক্রয়মূল্যের সমান লাত করায় বিক্রয়মূল্য পাওয়া গেল ৫৬০ টাকা। দ্রব্যটির ক্রয়মূল্য কত?