১১৬১১
The value of 'A' varies in verse in inverse proportion as the square of 'B'.If the value of 'A' is equal to 40 when 'B' is equal to 12. What would be the value of 'A' when 'B' is equal to 24?
উত্তর
10
১১৬১২
The average age of the 20 aspirants of a class is 19.2 years. After some time two more aspirants join them and then average is increased by 0.3 years. Find the difference between the age of new aspirants.
উত্তর
None of these
১১৬১৩
A cistern is normally filled with water in 10 hours but takes 5 hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty the cistern in.
উত্তর
30 hours
১১৬১৪
P and Q start a hotel. P left after 6 months. After the years ends P gets Tk. 6,000 as profit out of total profit of Tk. 9,000. What will be amount invested by Q if P had invested Tk. 20,000?
উত্তর
Tk. 5,000
১১৬১৫
A and B go cycling in the same direction with speeds of 6 km/hr and 12 km/hr. A car from behind passes them in 9 and 10 seconds respectively. What is the speed of the car?
উত্তর
66 km/hr
১১৬১৬
The ratio of the present age of father to that of son is 7:2. After 10 years their ages will be in the ratio of 9:4. The present ages of the father is -
উত্তর
35 years
১১৬২০
৩০ থেকে ৮০ এর মধ্যবর্তী ক্ষুদ্রত্তম ও বৃহত্তম মৌলিক সংখ্যার ব্যবধান কত? ক) ৩৫ খ) ৪২ গ) ৪৮ ঘ) ৫৫
উত্তর
48