If X4=81 and Y2=49, then maximum possible value for Y-X is
A. 21
B. 10
C. 4
D. -4
E. -10
সঠিক উত্তরঃ
B.
10
Explanation:
Related Questions (Any University/Year)
- Anwar is 3 times as old as Babu. In 13 years, Anwar will be 1 year younger than twice Babu's age. How old is Anwar now?
- Francis had a average of 75 on her first four Geography tests, After taking the next test, her average dropped to 72. How much did she get in the fifth test?
- Jasim went for shopping and spent 1/3 of his money for a bat and another Tk 5 for a ball. If Jasim still had 1/2 of his money left, how much money did Jasim have originally?
- The average of 5 numbers is 38. If 2 numbers with an average of 27.5 are added to these numbers, what will be the average of the 7 numbers combined?
- Successive discount of 25% and 20% are equal to a sings discount of-
- একটি ধাতব ঘন(cubical) বস্তুর ওজন ৮ কেজি।একই ধাতুর তৈরী আরেকটি ঘন বস্তু যার প্রতিটি বাহু দ্বিগুণ হলে বস্তুটির ওজন কত কেজ???
- A seller of pen was asking for such price that would enable him to offer 10% discount and sill make a profit of 20% on cost if the cost of pen was TK. 30, what was his asking price?
- Two boats on the opposite shores of a river start moving towards each other. When they pass each other they are 750 yards from one shoreline. They each continue to the opposite shore, immediately turn around and start back. When they meet again they are 250 yards from the other shoreline. Each boat maintains a constant speed throughout. How wide is the river?
- If the average of the two numbers is M and the larger number as L, what is the smallest number?
- Stan can run 10 miles per hour, whereas Jack can run only 8 miles per hour.If they start at the same time from the same point and run in opposite directions, how far apart( to the nearest Mile) will they be after 10 minutes?
- If 14 farmers plough a field in three hours, how long will it take if 15 farmers to do the same job?
- Which of the following has the highest value?
- Total number of telephone calls is 'n' call charge is Tk. 'p' per call. Then total call charge is:
- 50 জন ছাত্রের একটি শ্রেনিতে রূপমের স্থান হচ্ছে শীর্ষ থেকে অষ্টম এবং হাসিবের স্থান হচ্ছে নিচ থেকে বিমতম। তাহলে রূপম ও হাসিবের মাঝে কতজন ছাত্র আছে?
- Thirty percent of the members of a swimming club have passed the lifesaving test. Among the members who have not passed the test, 12 have taken the preparatory course and 30 have not. How many members are there in the swimming club?
- প্রশ্নবোধক চিহ্নের স্থানে কোন সংখ্যাটি বসবে?
- 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?
- পিতা ও পুত্রের বয়সের অনুপাত 7:3 । 4 বছর পূর্বে তাদের বয়সের অনুপাত ছিল 13:5। বর্তমানে কার বয়স কত?
- Rashid deposits Tk. 1200 from his salary in the first month. In every subsequent month, he deposit Tk. 100 more than the amount deposit in the previous month. What will be the total amount of his deposit in 18 months?
- 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?
- After 2 females leave a party there are twice as many males as females. Then 9 males leave the party and there are twice as many females as male. How many females attended the party?
- Two trains are running in opposite directions in the same speed. The length of each train is 120 metre. If they cross each other in 12 seconds, the speed of each train (in km/hr) is:
- A reservoir has two pipes, A and B. A can fill the reservoir 5 hours faster than B. If both together fill the reservoir in 6 hours, the reservoir will be filled by A alone in-
- In the figure, AC=AD, and CD = BD = AB. What is the value of <CAD?
- If a certain vase contains only roses and tulips, how many tulips are there in the vase?i. The number of roses in the vases is 4 times the number of tulips in the vase.ii. There is total of 20 flowers in the vase
- ০.২২×০.৭০= ?
- Three friends A, B and C have lunch together... What is A's share in the $4?
- If Milly gives Tilly Tk. 60 , the money they have is in the ratio 2:1 however , If Tilly gives Mily TA. 10 the ratio is 1:3 How much money have Milly before they exchange any money?
- Diana bought a stereo for $530, which was the retail price plus a 6 percent sales tax. How much money could she have saved if she had bought the stereo at the same retail price in a neighboring state where she would have paid a sales tax of 5 percent?
- The average weight of 3 men is 53 kg. None of them weighs less than 51 kg. What is tha maximum possible weight (in kg of a person in that group?
- If x #0, then (x+7)/7x-1/x = ?
- If a printer can print 2 pages per second, then approximately how many minutes will it take to print 5000 pages?
- ৩ হচ্ছে একটি সংখ্যার ১২%, তাহলে একই সংখ্যার ২০% কত হবে?
- An error 2% in excess is made white measuring the side of a square. The percentage of error in the calculated area of the square is:
- 15 workers can finish a job in 12 days. They work for 4 days, after which 5 additional workers join the team. In how many days will all of them together complete the remaining job?
- When positive integer x is divided by positive integer y, the remainder is 9. If x/y = 96.12, what is the value of y?
- If a doctor gives you 3 pills and tells you take one pill every half hour, how long would it be before all the pills had been taken?
- For a Wall of a given material and of a fixed surface area, the rate of heat loss by condition through the wall is inversely proportional to the thickness (T) of the wall, and directly proportional to the temperature difference (d) across the wall. The rate of heat loss could be given by which of the following expressions?
- 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 the population of Town B is 50% greater than the population of Town A, and the population of Town C is 20% greater than the population of Town A, then what percent greater is the population of Town B than the population of Town C?
