Amio working alone ,can finish a certain job in 10 days and Sumio working alone can finish the same job in 15 days. If Amio and Somio are working together how many days do they need to finish the job?
A. 25 days
B. 12.5 days
C. 6 days
D. 8 days
সঠিক উত্তরঃ
C.
6 days
Explanation:
Related Questions (Any University/Year)
- 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?
- 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?
- Nafiz inherited 30% of his father's asset. After paying a tax of 20% of his inheritance, what percent of his father's asset does Nafiz own now?
- What percent of 50 is 50?
- In a pickup van, in addition to 50 hens, there are 45 goats and 8 camels with some keepers. If the total number of their feet be 224 more than the number of their heads in the van, find out the number of keepers in the van.
- If 1/x+5/y4/3 and x = 3y, then y = ?
- একটি মানচিত্রে ১ ইঞ্চি দূরত্ব ২০ মাইলের সমান। দুটি শহরের মধ্যবর্তী দূরত্ব ৬.২ ইঞ্চি। শহর দুটির প্রকৃত দূরত্ব কত?
- কয়েকজন বন্ধু পিকনিকে যাওয়ার সিদ্ধান্ত নিয়েছিল এবং খাওয়ার জন্য ৯৬০ টাকা খরচ করার পরিকল্পনা করেছিল। তাদের মধ্যে চারজন না যাওয়াতে। বাকিদের প্রত্যেককে অতিরিক্ত ৪০ টাকা করে চাঁদা দিতে হয়েছে। পিকনিকে যারা অংশ নিয়েছিল তাদের সংখ্যা ছিল-
- X is 10 years older than his wife who is 4 times as old as her son. if the son was 5 years back become 4, what is the age of X?
- If y% of x is 29.Then x=?
- Which of the following is equal to 85 percent of 160?
- If the cost of a long-distance phone call is P paisa for the first minute and 2/3 P paisa for each additional minute, what is the cost, in paisa, of a 10-minute call of this type?
- 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 11 taka per dozen and thus made a profit of 100 taka. How many dozens of banana did he purchase altogether?
- . If X4 = 81 and Y2 = 49, then maximum possible value for Y-X is
- Which one of the following is the minimum value of the sum of two integers whose product is 36?
- মোহন ও সোহানের বর্তমান বয়সের অনুপাত ২ : ৩ এবং তাদের বয়সের পার্থক্য ১২ বছর। সোহানের বর্তমান বয়স কত?
- The ratio of quantity of water in fresh fruit to that of dry fruits is 7 : 2 . If 400 km of dry fruits contain 50 km of water then find the weight of the water in same fruits when they were fresh?
- 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 not be the length of the fence in feet? (12 inches =1 foot)
- Total production cost is measure by the following mle:Total production cost = Material cost + Labor Cost + Overhead CostIn a celain production period, material cost was Tk. 20 and was Y‹ ths of labor cost. Overhead cost was Tk. 10 more than labor cost. What was the total production cost in Taka?