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)
- In a certain apartment building exactly 1/3 of the apartments have two bedrooms and exactly 1/7 of the two-bedroom apartments are front apartments. Which of the following could be the total number of apartments in the building?
- Sabina 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. Sabina has 15/16 cup of sugar. Does she have enough sugar, or how much more does she need?
- The length of a field i 1.5 times of it s width . If the width if this field is 20 meters. find out the cost of fencing the field at a cost of Tk. 5.0 per meter.
- Two hours after train A has started its journey, train B started from the same point to the same direction at a speed of 18 km/h. If the speed of train A is 9 km/h then how many hours would it take for train B to catch the first train?
- Rima bought 4 books that cost Tk 6 each and 2 books that cost tk 3 each .what's the averge cost of the six books?
- Six years from now, Afnan's age will be the square of her age six years ago. What is Afnan's age?
- 84, 40, 18, ?
- Quazi has a wheat business. He purchases wheat from a local wholesaler at a particular cost per pound. The price of wheat at his stores is $3 per pound. His faulty spring balance reads 0.9 pounds for a pound. Also, in the festival season, he gives a 10% discount on the wheat. He found that he made neither a profit nor a loss in the festive season. At what price (per pound) did Quazi purchase the wheat from the wholesaler?
- The least integer of set of consecutive integers is- 25. If the sum of these integers is 26, many integers are in this set?
- The sale of TV increased by 30% when the price was reduced by 10%. What will be the percentage change in revenue?
- . The number of students in 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?
- 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?
- X sells a product of Y and makes a profit of 25%. Y sells it to Z at a loss of 20%. If Z buys it for tk. 140 what price X paid for it?
- If P and Q are positive integers, which CANNOT be the greatest common divisor of P and Q?
- . If the volume of a cube is x cubic feet and the total surface area of the cube is x square feet, then what is the total length, in feet, of all the cube's edges?
- 4/5 কে শতকরায় প্রকাশ করলে কত হয়?
- Jo's collection contains US, Indian and British stamps. If the ratio of US to Indian stamps is 5 to 2 and the ratio of Indian to British stamps is 5 to 1, what is the ratio of US to British stamps?
- An amount of money is to be distributed among P, Q and R in the ratio of 6:19:7 respectively. If R gives 200 TK of his share to Q, the ratio among P ,Q and R becomes 3:10:3 respectively. What was the total amount in taka?
- In a local election X and Y contested. X won the election as the ratio to his votes and those of Y was 4:3 The total number of voters was 5810, of which 910 , did not vote . what is the margin of votes by which Y was defeated?
- রাবেয়া একটি বালিকা শ্রেনির যে কোনো প্রান্ত থেকে একাদশ অবস্থানে আছে। শ্রেনিতে মোট বালিকার সংখ্যা কত?
- There is 50% chance that Rafiq will go to a fast-food restaurant for lunch and 50% chance that he will skip lunch. If he goes to a fast-food restaurant there is 60% chance that he will take only a sandwich and nothing else. If he decides not to take a sandwich, he will take a burger of a chicken pie. What is the probability that he will take a burger?
- ঢাকা থেকে চট্টগ্রাম এর দূরত্ব ১৮৫ মাইল। চট্টগ্রাম থেকে একটি বাস ২ ঘণ্টায় প্রথম ৮৫ মাইল যাওয়ার পর পরবর্তী ১০০ মাইল কত সময়ে গেলে গড় ঘন্টায় ৫০ মাইল যাওয়া হবে?
- Seven (7) is 5% of which number?
- Harun is three times us old as Tamim. In eight years, he will be twice as old as Tamim. How old was Harun 3 years ago?
- Sharif ran a 2 mile race at an average speed of 8 miles per hour. If arif ran the same race at an average speed of 6 miles per hr. How many minutes longer than sharif did arif take to complete the race?
