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)
- 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 দ্রব্য ক্রয়মূল্যের সমান লাত করায় বিক্রয়মূল্য পাওয়া গেল ৫৬০ টাকা। দ্রব্যটির ক্রয়মূল্য 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?
- Which of the following is equal to 85 percent of 160?
- In a certain class, 40% of the students are girls, and 20% of the girls wear glasses. What percent of the children in the class are girls who wear glasses?
- A bus is traveling with 60 passengers. When it arrives at a stop, x number of passengers get off and 8 get on. At the next stop, one third of the passengers on board get off and 5 get on. There are now 37 passengers on the bus. Find x.
- If 0≤x≤5 and y<15, which of the following cannot be a possible value of xy?
- The difference between two positive numbers is 16. If the smaller of those two numbers is 3/5th of the larger, what is the value of the smaller number?
- 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?
- x - {x - (x + 1)} = ?
- If Masud can do a job in P days, while Minhaz can do the same job in Q days separately, how long will it take to finish the job if they work together?
- Terra Data asked a team of workers to finish a project. After 16 days, 25% workers left. Remaining workers took the same number of days to finish rest of the work that the original team would have taken to complete the entire project. In how many days was the entire project finally completed?
- A computer is programmed to add 3 to the number N, multiply the result by 3, subtract 3, and divide this result by 3. The computer answer will be
- If 25% of x equals 30% of y and 24% of y equals 20% of z, what is the ration of x to z?
- একটি ক্লাসে ৩০ জন শিক্ষার্থী আছে । তাদের মধ্যে ১৮ জন ফুটবল খেলে ও ১৪ জন ক্রিকেট খেলে । ৫ জন কিছুই খেলেনা । কত জন ফুটবল ও ক্রিকেট উভয়ই খেলে ?
- The ratio of working hours of three workers is 1: 2: 5 . If they worked on a combined total of 112 hours , what is the longest hour did one worker work?
- If, x+y>4 and x1 is true
- একটি মানচিত্রে ১ ইঞ্চি দূরত্ব ২০ মাইলের সমান। দুটি শহরের মধ্যবর্তী দূরত্ব ৬.২ ইঞ্চি। শহর দুটির প্রকৃত দূরত্ব কত?
- If the radius of a circle is increased by 50%, what will be the percent increase in the circumference of the circle?( Circumference= 2pr)
- 6,9,15,18 দৈর্ঘ্য বিশিষ্ট সরলরেখা দ্বারা কয়টি ত্রিভুজ গঠন করা যাবে?
- A sum of BDT 200 will be divided among 5 swimmers, named Emran, Durjoy, Chopol, Billal and Anabi, who have just finished a swimming competition. Everyone will receive at least BDT 5 and no two swimmers will receive the same amount of money. Emran has come \(1^{st}\) and will get BDT 80; Durjoy has come \(2^{nd}\), Chopol is \(3^{rd}\), Billal is \(4^{th}\) and Anabi is last. Moreover, the distribution of money is subject to the following conditions: • No one will get any fractional amount of money. • The swimmer who finishes earlier must receive more money than the swimmer(s) he defeats.. What are the greatest and least amount of money, consecutively, that Chopol can receive?
- Jony has 30 pages to read for history class tonight. He decided that he would take a break when he finished reading 70% of the pages assigned. How many pages assigned. How many pages must he read before he takes a break?
- If x is an odd integer, in which of the following equations must y be an even integer? I. xy = 5 II. x + 2y = 11 III. 2x + y = 12
- The sum of three digits of a number is 10, The middle digit is equal to the sum of other two, and the number will be increased by 99 if the first and third digits be interchanged. What is the original number?
- Rectangle ABCD has a perimeter of 26. The half circle with diameter AD has an area of 8π. What is the perimeter of the part of the figure that is not shaded?
- In the trapezoid, <CAB= DBA =60° and AC= DB = 10 cm. Find the area of the trapezoid.
- An amount of money is to be distributed among P, Q and R in the ratio of 6:19:7 respectively. If R gives Tk. 200 of his share to Q. the ratio among P, Q and R becomes 3:10:3 respectively. What was the total amount in taka?
- The foot of a ladder is 2m away from a vertical wall. The height of the top of the ladder is 2.m less than the length of the ladder. What is the length of the ladder?
- . 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?
- Tom and Bill agreed to race across a 50 foot pool and back again. They started together but Tom finished 10-ft ahead of Bill. If their rates were constant and Tom finished the race in 27 seconds, how long did Bill take to finish it?
- স্রোতের প্রতিকূলে যেতে যে সময় লাগে , অনুকূলে যেতে তার অর্ধেক সময় লাগে । যাতায়াতে যদি ১২ ঘন্টা সময় লাগে, তাহলে স্রোতের অনুকূলে যেতে কত ঘন্টা সময় লাগে?
- Lamisa's age is 5 years more than twice Galib’s age. Zihan’s age is 13 years less than 10 times Galib’s age. If Zihan is 3 times as old as Lamisa, how old is Lamisa?
- Alam can do a job in 3 hours. Bipu can do the same work in 20% lesser time but he charges 30% per hour more than Alam does. Alam works for 1 hour and the rest is completed by Bipu. If Alam receives 100 TK , how much did Bipu receive?
- After working for a total of 4 hours at a temporary job, Shams was told that you had just completed 1/4 of the job. How long should it take you to finish the remaining part of the job?
- Average of 5 consecutive even numbers is 8 which is the smallest of the 5 number----.
- If a, b and c are 3 consecutive integers in that order, which of the following has the lowest value?
- ঢাকা থেকে চট্টগ্রামের দূরত্ব ২৪০ কি. মি.। একটি বাস ঘণ্টায় ৬০ কি. মি. গতিতে গিয়ে ঘণ্টায় ৪০ কি. মি. গতিতে ফিরে এল। বাসটির গড় গতিবেগ কত?
- 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?
- If x # 0, then (x+7)/7x-1/x=?
- Two nations produce 1/5 and 3/10 respectively, of the world production of aluminum. What fraction of world production do the other nations produce together?
