If 2n=n2, then which of the following must be true?
A. n>1
B. n=2
C. n can be any even number
D. n should be a multiple of 2
E. None of these
সঠিক উত্তরঃ
B.
n=2
Explanation:
Related Questions (Any University/Year)
- The cost of pen is 20% more than that of a book and the cost of a CD is 3/4 as much as the cost of the pen. If the cost of the pen is tk 90 more than that oh the CD, what is the cost of the book in taka?
- 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?
- Faruk covers d miles in the first hour,e miles in the second hour and f miles in the third hour what is the average rate for the entire trip?
- Each questions is followed by two statements. Decide whether the data in the statements are sufficient to answer the question. Select your answer according to whether: If x and y are integers, is y even? (1) \(6x + 3y\) is even (2) \(3x + 6y\) is even
- A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work is:
- নিচের কোন সংখ্যাটি দুটি ধনাত্মক সংখ্যার গুনফল যার যােগফল হচ্ছে ৩?
- There were n books in a store. After 1/6th of the books were sold and 5 more books were procured, the total number of books in the shop stood at 65. What was the original number of books in the shop?
- একটি পরীক্ষায় ৫২% পরীক্ষার্থী ইংরেজিতে এবং ৪২% পরীক্ষার্থী গণিতে ফেল করল। যদি উভয় বিষয়ে ১৭% ফেল করে তবে কয়জন পরীক্ষার্থী উভয় বিষয়ে পাশ করে?
- Seven (7) is 5% of which number?
- ০.৪ * ০.০২ * ০.০৮ = ?
- If 12 men can reap 120 acres of land in 36 days, how many acres of land can 54 men reap in 54 days?
- If a, b and c are 3 consecutive integers in that order, which of the following has the lowest value?
- The measure of the side of a square is tripled. If x represents the perimeter of the original square , what is the value of the new perimeter?
- \( 0.001 \div 0.1 \times 0.1 = ? \)
- A cricketer has a certain average in 9 innings. In the 10th innings he scored 100 run and thus increases his average by 8 runs. What is his new average?
- Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient . A worker is hired for six days.He is paid Tk.2 more for each day of work than he was paid for the preceding day of work.How much was he paid for the day of work?
- একটি বর্গক্ষেত্??ের বাহুকে চার গুণ বড় করলে ক্ষেত্রফল কত গুণ বৃদ্ধি পাবে?
- A can complete a project in 20 days and B can complete the same project in 30 days. If A and B start working on the project together and A quits 10 days before the project is completed, in how many days will the project be completed?
- The average weekly salary per head of all employees is Tk. 1000 (Supervisors and Labours). The average weekly per head salary of all supervisors is Tk. 6000 while the average weekly salary per head of all labours is Tk. 750. If there are 840 labours in it find the number of supervisors