The average of 2 numbers is X. If one of the numbers is A, the other number is
A. X-A
B. (A+X)/2
C. 2X-A
D. X/2-A
সঠিক উত্তরঃ
C.
2X-A
Explanation:
Related Questions (Any University/Year)
- In a Super Shop, the sales of an item decreased by 75% from 2005 to 2006. If the sales in 2007 were the same as in 2005, what would be the percentage increases in sales from 2006 to 2007 ?
- If x=12, which one has the least value ---
- If 12 carpenters, working 6 hours a day, can make 460 chairs in 24 days, how many chairs will 18 carpenters make in 36 days , each working 8 hours a day?
- IF x+y=9 and x-y = 5 the value of 4xy is:
- An article when sold at a gain of 5% yields Tk. 15 more than when sold at a loss of 5% . Its cost price would be
- If the integer x is divisible by 5 but not by 2, then which one of the following is never an integer ?
- A man travels a certain distance at a rate of 20 miles an hour and returns at the rate of 30 miles an hour . What is the average speed ?
- 9x+2=81, x=?
- The number of parallelograms that can be formed from a set of four parallel lines intersecting another set of three parallel lines is
- A train passes city X at 9.55 am and Y city at 10.15 am . The distance between cities X and Y is 45 miles . What is the average speed, in miles per hour of the train ?
- There are 120 engineers and technicians working in a project. If the ratio of engineers to technicians in 3 to 5, how many technicians are working in the project?
- কোনো আসল ৩ বছরে সুদে আসলে ৪৬০ টাকা এবং ৫ বছরে সুদে আসলে ৫০০ টাকা হলে আসল কত?
- মাসুদের আয় ও ব্যয়ের অনুপাত ২০ : ১৫ হলে তার মাসিক সঞ্চয় আয়ের শতকরা কত অংশ?
- If x = 2y = 3z = 36 then the arithmetic mean of x, y, z is :
- কোনো পরীক্ষায় পরীক্ষার্থীর ৮০% গণিতে এবং ৭০% বাংলায় পাস করল। উত্তয় বিষয়ে পাস করল ৬০% । উত্তয় বিষয়ে শতকরা কতজন ফেল করল?
- রাত ৩ টায় তাপমাত্রা -১৩° হলে, এবং সকাল ৬ টায় তাপমাত্রা বৃদ্ধি পেয়ে ২০° হলে তাপমাত্রার পরিবর্তন কত হলে?
- 30 টাকা 75 টাকার শতকরা কত ?
- log553 এর মান কত?
- A can do a piece of work in 10 days. While B alone can do it in 15 days. They work together for 5 days and the rest of the work is done by C in 2 days. If they get Tk 450 for the whole work, how much money C should get from the whole?
- ০.২×০.০০২×০.২৫=কত?