Amir and Hannan working together can finish a work in 3 hours. If they work alone, Hannan takes 3 times as long as Amir. How long does Hannan take to finish the job alone?
A. 6
B. 12
C. 14
D. 16
NSIসহকারী পরিচালকমানসিক দক্ষতা(IQ)গাণিতিক সমস্যাIQ-4 (Topic Practice)NSI - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
B.
12
Explanation:
Related Questions (Any University/Year)
- The average age of a team is 32.7 years. The average age of the males in the team is 33.2 years and the average age of the females is 32.2 years. What is the ratio of the number of females to the number of males in the team?
- If X4=81 and Y2=49, then maximum possible value for Y-X is
- Lima is 6 years older than her sister Sharmin, and Jamal is 5 years older than Lima. If the total of their ages is 41, how old is Jamal?
- 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?
- A bookstore lists a novel at such a price that after giving a discount of 30% on the listed price (including tax) it earns a profit of 40%. If enlisted price of the novel including tax is Tk. 460, then what is the cost price of the novel?
- An employee can choose one of two methods of annual payment either an annual salary of Tk. 35,000 with no commission or an annual salary of Tk. 10,000 plus a 20% commission on her annual sales. What must be her total annual sales to get the same annual payment in either method?
- A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is:
- A 112-meter rope is cut into three pieces with each piece twice as long as the previous one. How long is the longest piece?
- A train 75 meters long is running with a speed of 20 km/hr. it will pass a standing man in:
- 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 . Is K a multiple of 6? (1)K is a multiple of 3. (2) K is a multiple of 12.
- A car must complete a180-km trips in 4 hours. If he averages 50 km an hour for the first three hours of his trip, how fast must he travel in the final hour?
- Bill can hammer 20 nails in 6 minutes. Jeff can do the same job in only 5 minutes. How long will it take them to finish if Bill hammers the first 5 nails, then Jeff hammers for 3 minutes then Bill finishes the job?
- BG Mawla drove for h hours at a constant rate of r miles per hour. How many miles did he during the final 20 minutes for his drive?
- x+y=12 এবং x-y=2 হলে xy এর মান কত ?
- 4 জন তাঁতী 4 দিনে 4টি মাদুর তৈরি করতে পারে। একই হারে ৪ জন তাঁতী ৪ দিনে কতটি মাদুর তৈরি করতে পারবে?
- Rezoan started a business investing Tk 50,000. Four month after he started ,Ameer joined him with a capital of Tk 90,000 .If at the end of the year the total profit in the business is tk 22000 .What would be the Ameer's share in it
- If it takes 5 minutes to boil an egg, how much time it will take to boil 10 eggs?
- In Jiimiary, 55 percent of a hospital's 300 patients were women. In February, 30 percent of its 440 patients were women. What was the percent change in the number of women patients from January to February?
- কাফি ও খলিল একটি কাজ যথাক্রমে ১০ দিনে ও ১৫ দিনে করতে পা??ে। তারা একত্রে কাজটি কত দিনে করতে পারবে?
- The price of article has been reduced 25%.In order to restore the original price the new price must be increased by