The average age of a man and his son is 20. after 10 years, their age will be in the ratio 2:1. What was the age of the man and his son 5 years ago respectively?
A. 15,5
B. 25,15
C. 25,5
D. 15,10
E. None
সঠিক উত্তরঃ
C.
25,5
Explanation:
Related Questions (Any University/Year)
- Reservoir A contains 450 million gallons of water more than does Reservoir B. If 100 million gallons of water were to be drained from Reseryoir A into Reservoir B, then Reservoir A would contain twice as much water as would Reservoir B. How many million gallons of water does reservoir A currently contain?
- What was the original price of an item if a discount of 20% reduced the price to Tk. 100?
- If s shirts can be purchased for d dollars, how many shirt can be purchased for t dollars?
- ২ঃ৩ এর ব্যস্তানুপাত---
- On glancing through your morning newspaper you notice that four pages are missing. One of the missing pages is page 8. The back page of the newspaper is 28. What are the other three missing pages?
- Three workers P. Q. R can do a certain job at their own rate separately. If X represents the ratio of the work-speed of P and R, and Y represents the ratio of the work-speed of Q and R. such that \(X < Y\) and \(Y < 1\), who is the fastest worker of the three?
- 24 men working at 8 hours per day can do a piece of work in 15 days. In how many days can 20 men working at 9 hours per day do the same work?
- ১১ জন কুমোর ৪ দিনে ১৪৩টি হাড়ি তৈরি করতে পারে। ৪ দিনে ১৬৯টি হাড়ি তৈরি করতে কত জন কুমোরের প্রয়োজন?
- 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?
- At College X, the faculty-to-student ratio is 1:9. If two-third of the students are female and one-quarter of the faculty is female, what fraction of the combined students and faculty is female?
- Thereare 209 doctors and nurses in a hospital. If the ratio of the doctors to the nurses is 11:8, then how many nurses are there in the hospital?
- একটি ত্রিভুজের একটি কোণের পরিমাণ ৩০ ডিগ্রী। অন্য কোণ দুটির একটি অন্যটির দ্বিগুণ হলে ক্ষুদ্রতর কোণটির পরিমাপ কত?
- রাবেয়া একটি বালিকা শ্রেনির যে কোনো প্রান্ত থেকে একাদশ অবস্থানে আছে। শ্রেনিতে মোট বালিকার সংখ্যা কত?
- There are 50 students enrolled in Business Studies. Of the enrolled students 90% took the final exam. Two-thirds of the students who took the final exam passed the final exam. How many students passed the final exam?
- একটি লোকের কিচু মুরগি এবং গরু আচে। যদি তাদের মাথার সংখ্যা 48 এবং পায়ের সংখ্যা 140 হয়, তাহলে মুরগির সংখ্যা কত?
- Working independently, Sourodip can perform a certain task in 6 hours and Eshanee can perform it in 7 hours. If Sourodip and Eshanee work together for 3 hours, and then Sourodip leaves, how many hours will it take Eshanee to complete the task alone?
- If P denotes + Q denotes - R, denots +and S denotes X, then what is the value of 18s36R12Q6p7?
- There are 200 questions in a 3-hour examination. Among the questions are 50 mathematics problems. It is suggested that twice as much time be allowed for each mathematics problem as for each of the other questions. How many minutes should be spent on the mathematics problems?
- 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?
- 150 meter long train takes 10 seconds to pass a man who is going in the same direction at the speed of \(2~km/hr.\) what is the speed of the train?
- Shuvo requested for an equal number of Math and English books. The delivery stuff mistakenly delivered 300 extra Math books, making the ratio 6:5. How many books did Shuvo originally order?
- 1, 2, 6, 7, 9: A 3-digit integer is to be formed from the digits listed above. If the first digit must be odd, either the second or the third digit must be 2, and no digit may be repeated, how many such integers are possible?
- পাঁচটি বিড়াল পাঁচটি ইঁদুর ধরতে সময় নেয় পাঁচ মিনিট। ৩০টি বিড়াল ৩০ টি ইঁদুর ধরতে কত সময় নেবে?
- Instructions: Each question consists of a problem followed by two statements. Decide whether the data in the statements are sufficient to answer the question. Eshan and Arnob have the same birthday. Arnob's age now is the same as Ehsan's age was when Arnob was half as old as Ehsan is now. What is Ehsan's age now? (1) Ehsan is currently four times as old as he was when Arnob was born. (2) Ehsan was six years old when Arnob was born.
