A can complete a work in 15 days and B can complete the work in 20 days. If B works for 8 days and left the job, then in how many days the A can complete the remaining job?
A. 6 days
B. 7 days
C. 8 days
D. 9 days
E. 10 days
সঠিক উত্তরঃ
D.
9 days
Explanation:
Related Questions (Any University/Year)
- একটি ঝুড়িতে আপেল এবং কমলা মিলিয়ে ২১ টি ফল আছে।প্রতিটি আপেল ১৫ টাকা এবং কমলা ১৮ টাকা দামে কেনা হয়েছে।সবগুলো ফল কিনতে যদি ৩৪৮ টাকা খরফ হয় তবে আপেল এবং কমলার মোট দামের পার্থক্য কত?
- A man can travel 120 miles in either of 2 ways he can travel at a constant rate of 40 miles per hour, or he can travel halfway at 50 miles per hour, then slow down to 30 miles per hour for the second 60 miles. Which way is faster and by how much?
- In a group of five men, no two men have the same age. The oldest man is 50 years sold, and the youngest 30 years old. If X years is the average age of the men in the group, which of the following best indicates all and only possible values of X? (All ages are in whole numbers)
- 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?
- A merchant sells an item at a 20 percent discount , but still makes a gross profit of 20 percent of the cost. what percent of the cost would be the gross profit on the item. if it were sold without discount?
- Saima needs to make a cake and some cookies. The cake requires 3/8 cup of sugar and the cookies require 3/5 cup of sugar. Saima has 15/16 cup of sugar. Does she have enough sugar, or how much more does she need?
- In a group of four people, the heights of the group members are 5 feet 4 inches, 5 feet. 5 feet 6 inches, and 4 feet 10 inches. The average height of the group members is
- The population of City X is 40% percent of the population of City Y. The population of City X is what percent of the total population of city X and City y together?
- The price of an article has been reduced 25%. In order to restore the original price, the new price must be increased by
- The number of students on each section of a school is 24. After admitting new students, three new sections were started. Now, the total number of sections is 16 and there are 21 students in each section. How many new students were admitted?
- Last year Jackie saved 5% of her annual salary. This year, she made 10% more money and saved 8%. The amount saved this year was what percent of the amount saved last year?
- Two staions P and Q are 110 km apart on a straight track. One train starts from P at 7 AM and travels towards Q at 20 kmph . Another train starts from Q at 8 AM and travels towards P at a speed of 25 kmph . At what time will they meet?
- A bus is travelling with 60 passengers. When it arrives at a stop, x number of passengers get off and 8 get on. At the next stop, on third of the passengers on board get off and 5 get on. There are now 37 passengers on the bus. Find x.
- If x/y = 3/7, then which of the following can't be a possible value of (y-x)?
- Three partners A, B, C invest Tk.26000, Tk.34,000 and Tk.10000 respectively in a business. Out of a profit of Tk. 3500, B's share is
- In a certain village, m liters of water are required per household per month. If there are households in the village, how long (in months) will p liters of water last?
- The average (arithmetic mean) of four different positive integers is 20. What is the greatestpossible value of any of these integers?
- If the car starts journey from 'C' to 'D' at 12 am, at which time will it be back to 'C' (the car does not stop at D)?
- A train running at the speed of 60 km/hr crosses a pole in 9 seconds, what is the length of the train?
- If (x -y=2) and (xy =3) , then (x + y =?)