দুইটি নল দিয়ে একটি চৌবাচ্চা ৮ মিনিটে পূর্ণ হয়। নল দুইটি খুলে দেয়ার ৪ মিনিট পর ১ম নল বন্ধ করে দেয়ায় চৌবাচ্চাটি পূর্ণ হতে আরও ৬মিনিট লাগলো। প্রত্যেক নল দ্বারা পৃথকভাবে চৌবাচ্চাটি পূর্ণ হতে কত সময় লাগবে?
A. ১০ মিনিট, ১২ মিনিট
B. ১২ মিনিট, ১০ মিনিট
C. ২৪মিনিট, ১২মিনিট
D. ১২মিনিট, ২৪মিনিট
বাংলাদেশ পল্লী বিদ্যুতায়ন বোর্ডমানসিক দক্ষতা(IQ)গাণিতিক সমস্যাIQ-4 (Topic Practice)বাংলাদেশ পল্লী বিদ্যুতায়ন বোর্ড - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
C.
২৪মিনিট, ১২মিনিট
Explanation:
Related Questions (Any University/Year)
- if one half of female students enjoy watching movies and one-third of male students do not like to watch movies, what frictional part of the student body enjoys watching movies?
- 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 certain machine can make 3 widgets every 27 seconds. At this rate, how many widgets will be made in 1 minute?
- Thereare 209 doctors and nurses in a hospital. If the ratio of the doctors to the nurses is 11:8, then how many nurses are there in the hospital?
- A certain radio costs a shopkeeper Tk. 64, At what price must he sell it if he is to make a profit of 20% on the selling price?
- Instructions: DO NOT USE CALCULATOR. Figures are not drawn to scale. In a particular course, Arif appeared in 10 quizzes. The average of his best 9 quizzes is 10% more than the average of all the quizzes he attended. The total marks obtained in best 9 quizzes is what percent of the total marks obtained in 10 courses?
- Which one is true?
- A hospital needs 150 pills to treat 6 patients for a week. How many pills does it need to treat 10 patients for a week?
- Sadman has two rectangular fields. The larger field has twice the length and four times the width of the smaller field. If the smaller field has area K, then the area of the larger field is greater than the area of the smaller field by what amount?
- The daily rate of a hotel room that accommodates 4 people is Taka 3900 for one person and Taka x for each additional person. If 3 people take the room for one day and each pays Taka 2100 for the room, what is the value of x?
- current age ratio of father and son is 7:2 After 5 years, their age ratio will be 8:3 what is the corrent age of father?
- টেলিফোন ডায়ালে 0 থেকে 9 পর্যন্ত লেখা থাকে। যদি কক্সবাজার শহরের টেলিফোনগুলো 5 অংক বিশিষ্ট হয়, তবে ঐ শহরে কত টেলিফোন সংযোগ দেয়া যাবে?
- A competitor runs 200 meters race in 24 seconds. His rate is:
- In a certain class \(\frac{1}{2}\) of the male and \(\frac{2}{3}\) of the female students speak English. If there are \(\frac{3}{4}\) as many females as males in the class, what fraction of the entire class speaks English?
- A tiger is 50 of its own leaps behinds a deer. The tiger takes 5 leaps per minutes to the deer's 4 leaps. If the tiger and the deer cover 8 m and 5 m per leap respectively, what distance will the tiger have to run before it catches the deer?
- A company rents parking spaces at the rate of Tk. 100 per week or Tk. 300 per month. How much does a person save in a year (in Taka) by renting by month rather than by week?
- The ratio of marbles owned by X and Y is 8:3. If X gives 8 marbles to Y, the ratio becomes 6:5. How many marbles does X have?
- How many balls had C started with?
- Alam bought a roll of crepe paper streamers 35 feet long and 4 feet wide to make banners for a party . If each banner is 2 1/2 feet long and 2 feet wide, what is the maximum number of banners that he can make from this roll?
- The ratio of labor cost and materials cost for making a radio is 2:7. If the cost price is 90% of the selling price which is Tk. X, what is the labor cost per radio?