What is the value of 'x'? I. \(7^{1/x} + 24^{1/x} = 25^{1/x}\). II. x is a non-negative integer
A. Only I
B. Only II
C. Both I and II
D. Either I or II
Explanation: Statement 1 থেকে আমরা বুঝতে পারি root x এর value 2. তাহলে X এর value হচ্ছে 4। তাই Statement 2 আমাদের লাগছে না। x এর মান 2। \(7^{1/x} + 24^{1/x} = 25^{1/x}\) সমীকরণটিকে \(25^{1/x}\) দিয়ে ভাগ করলে \((7/25)^{1/x} + (24/25)^{1/x} = 1\) হয়। যেহেতু \((7/25)^2 + (24/25)^2 = 49/625 + 576/625 = 625/625 = 1\), তাই \(1/x = 2\) হতে হবে। অতএব, \(x = 1/2\)। কিন্তু যদি x একটি অঋণাত্মক পূর্ণসংখ্যা হয়, তাহলে \(x=2\).
Related Questions (Any University/Year)
- ২ঃ৩ এর ব্যস্তানুপাত---
- The Warm Muffin Bakery's cookie sales are always 60 precent of its muffin sales. What would be the increase in The Warm Muffin Bakery's cookie sales if its muffin sales, increased from 10,000 to 20,000?
- In his pocket , a boy has 3 red marbles , 4 blue marbles , and 4 green marbles , How many marbles will he have to take out of his pocket to ensure that he has taken out at least one of each colour?
- What is the greatest of consecutive integers Whose sum is 24?
- The sum of the ages of 4 children born at the intervals of 3 years each is 42 years. What is the age of the youngest child?
- 6,9,15,18 দৈর্ঘ্য বিশিষ্ট সরলরেখা দ্বারা কয়টি ত্রিভুজ গঠন করা যাবে?
- During a particular day, x number of applicants came to IBA to submit their applications before lunch. Of them 70% were male applicants. On the same day, y number of applicants came to submit their application after lunch and all of them were male applicants. On that particular day , the ratio of male applicants to female applicants was 4:1. Calculate y in terms of x.
- In a certain apartment building exactly 1/3 of the apartments have two bedrooms and exactly 1/7 of the two-bedroom apartments are front apartments. Which of the following could be the total number of apartments in the building?
- A class of 50 girls and 60 boys sponsored a football game. If 52% of the girls and 30% of the boys attended the game, what percentage of the class went to the game?
- Two trains are running at \(40~km/hr\) and \(20~km/hr\) respectively in the same direction. If the faster train completely passes a man sitting in the slower train in 5 seconds, what is the length of the faster train in meters?
- A piece of ribbon 4 yards long is used to make bows requiring 15 inches of ribbon for each. what is the maximum number of bows that can be made?
- 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?
- Of the following the closet approximation to V(5.98×601.5/15.79)
- As the price of mango has reduced by 20%, it is now possible to buy 2 more mangoes at Tk. 12. What is the current price of 50 mangoes?
- Three workers can do a job in 12 days . Two of the workers work twice as fast as the third . How long would it take one of the fastest workers to do the job alone?
- A straight fence is to be constructed from posts 6 inches wide and separated by lengths of chain 5 feet long. If a certain fence begins and ends with a post, which of the following could be the length of the fence in feet? (12 inches = 1 foot). Indicate ALL such answers.
- A man purchased equal number of bananas at two different rates- one at the rate of taka per dozen and the other at the rate of 10 taka per dozen. After that, he sold those bananas at an average rate of 11 taka per dozen and thus made a profit of 100 taka. How many dozens of banana did he purchase altogether?
- 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?
- Rahat can complete a task in 30 minutes, working together with his brother Mominul, he can complete the same task in 20 minutes. How long would it take for Muminul working along to complete the task?
- ফেরি পারাপারে চালকসহ একটি গাড়ি পার করার খরচ ৬ ডলার। একজন যাত্রির জন্য অতিরিক্ত ভাড়া ৫০ সেন্ট। যদি একটি গাড়ি পার করতে ৭.৫ ডলার খরচ হয়ে থাকে তবে গাড়িতে মোট কতজন লোক ছিল?
- If 2n=n2, then which of the following must be true?
- ঢাকা থেকে চট্টগ্রাম এর দূরত্ব ১৮৫ মাইল। চট্টগ্রাম থেকে একটি বাস ২ ঘণ্টায় প্রথম ৮৫ মাইল যাওয়ার পর পরবর্তী ১০০ মাইল কত সময়ে গেলে গড় ঘন্টায় ৫০ মাইল যাওয়া হবে?
- One copy machine can make 20 copies a minute , and a second copy machine makes 15 copies a minute. If the two copiers work together, how long would it take them to make 2100 copies?
- In Motor city, 90% of the population own cars, 15% own motorcycles, and everybody owns one or the other or both. What is the percentage of motorcycle owners who own car?
- ফেনী থেকে নোয়াখালীর দূরত্ব ৪৫ মাইল। করিম ঘণ্টায় ৩ মাইল বেগে হাঁটে এবং রহিম ৪ মাইল বেগে হাঁটে। করিম ফেনী থেকে রওয়ানা হওয়ার ১ ঘণ্টা পর রহিম নোয়াখালী থেকে ফেনী রওয়ানা হয়েছে। রহিম কত মাইল হাঁটার পর করিমের সাথে দেখা হবে?
- 40% of students in a class are smart. the rest are stupid .Half the students play sports and half don't. if 20% of the students are smart and play sports ,what percent of the students are stupid and don't play sports?
- If x #0, then (x+7)/7x-1/x = ?
- A discount of 20 percent on an order of goods followed by a discount of 10 percent amounts to
- The difference between the sum of two Numbers and difference of the two numbers is 6. Find the larger of the two numbers if their product is 15.
- এক ব্যক্তি তার স্ত্রী চেয়ে ৩ বছরের বড়। তার স্ত্রী বয়স তার ছেলের বয়সের ৪ গুন। ৪ ছর পর ছেলের বয়স হবে ১২ বছর। ঐ ব্যক্তির বর্তমান বয়স কত বছর?
- An empty swimming pool with a capacity of 5760 gallons is filled at the rate of 12 gallons per minute what is the time taken?
- Three business partners, Arko, Anik, and Abrar, agree to divide their total profit for a certain year in the ratios 2:5:8, respectively. If Arko's share of profit was $4,000, what was the total profit of the business partners for the year?
- Three workers can do a job in 12 days. Two of the workers work twice as fast as the third. How long would it take one of the faster workers to do the job alone?
- The ratio between sumit's and Prakash's age at present is 2:3. Sumit is 6 years younger than Prakash. The ratio of Sumit's age to Prakash's age after 6 years will be.
- How many balls had A given to C?
- Two staions P and Q are 110 km apart on a straight track. One train starts from P at 7 AM and travels towards Q at 20 kmph . Another train starts from Q at 8 AM and travels towards P at a speed of 25 kmph . At what time will they meet?
- যদি ৬ জন বালক ৬ মিনিটে ৬ পৃষ্ঠা লিখতে পারে তাহলে ১ জন বালকের এক পৃষ্ঠা লিখতে কত সময় লাগবে?
- If Mr. Rahim receives BDT 1500 as a profit from an investment which was made 5 years ago. If the rate was 6% per annum. then what was the amount of investment?
- In a class of 78 students 41 are taking French, 22 are taking German. Of the students taking French or German, 9 are taking both courses. How many students are not enrolled in either course?