A can complete a project in 20 days and B can complete the same project and B start working on the project together and A quits 10 days before in 30 days. If A the project is completed, in how many days will the project be completed?
A. 15
B. 16
C. 18
D. 21
E. none of these
সঠিক উত্তরঃ
C.
18
Explanation:
Related Questions (Any University/Year)
- Of the following the closet approximation to V(5.98×601.5/15.79)
- If x and y are integers and -6< x ≤ 7 and -3≤ y ≤ 9, then which of the following CANNOT be a value of xy?
- 20% of 50 = 50% of?
- Of 48 applicants, 28 had at least 5 years experience, 30 had MBA degree, and 10 had less than 5 years experience and no MBA degree. How many of the applicants had at least 5 years' experience and an MBA degree?
- In a certain school, the ratio of Seniors to Juniors is 5:4, and the ratio of Seniors to Sophomores is 6:5. What is the ratio of Juniors to Sophomores?
- A picnic was arranged by m students. Total cost of the picnic was estimated to be y taka. Unfortunately, z students withdrew their names from the picnic. How many more taka would each of the remaining students have to pay?
- The living room in Dina's home is 182 square feet. How many square yards of carpet should she purchase to carpet the room?
- The average age of boys in the class is twice the number of girls in the class. If the ratio of boys and girls in the class of 36 be 5:1, what is the total of the ages of the boys?
- 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 এবং B একটি কাজ ৮ ঘন্টায় সম্পন্ন করতে পারে। C এবং D একই কাজ ১২ ঘন্টায় সম্পন্ন করতে পারে। যদি চারজন একই সাথে কাজ করে, তাহলে উক্ত কাজটি সম্পন্ন করতে আনুমানিক কত সময় লাগবে?
- 3, 9 ও 4 এর চতুর্থ সমানুপাতিক কত?
- 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?
- If a printer can print 2 pages per second, then approximately how many minutes will it take to print 5000 pages?
- of the 400 students in a business school,30% were women and of these 1/5th became entrepreneurs.If the number of men who became entrepreneurs was twice the number of women entrepreneurs,how many men became entrepreneurs?
- 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
- In a kilometer race, A beats B by 50 meters or 10 seconds. What time does A take to complete the race?
- A man purchased equal number of bananas at two different rates- one at the rate of 8 Taka per dozen and the other at the rate of 10 Taka per dozen.After that,he sold those bananas at an average rate of 11Taka per dozen and thus made a profit of 100 taka .How many dozens of banana did he purchase altogether?
- The Warm Muffin Bakery's cookie sales are always 60 precent of its muffin sales. What would be the increase in The Warm Muffin Bakery's cookie sales if its muffin sales, increased from 10,000 to 20,000?
- In a room, all except 18 of the people are above 50 years of ages. If 15 of the people in the room are under 50 years of age. How many people are in the room?
- টেলিফোন ডায়ালে 0 থেকে 9 পর্যন্ত লেখা থাকে। যদি কক্সবাজার শহরের টেলিফোনগুলো 5 অংক বিশিষ্ট হয়, তবে ঐ শহরে কত টেলিফোন সংযোগ দেয়া যাবে?