Subject
Bank Exam
Topic
উত্তরা ব্যাংক (প্রবেশনারি অফিসার) - ০৯.১১.২০২৪
A committee of 5 members is to be formed out of 3 trainees, 4 professors and 6 research associates. In how many different ways can this be done if the committee should have 2 trainees 1 and 2 research associates?
A committee of 5 members is to be formed out of 3 trainees, 4 professors and 6 research associates. In how many different ways can this be done if the committee should have 2 trainees 1 and 2 research associates?
ক)
9খ)
15গ)
45ঘ)
60Explanation
নির্ণেয় উপায় = ³C₂ × ⁶C₂ = {(3 × 2)/(2 × 1)} × {(6 × 5)/(2 × 1)} = 3 × 15 = 45Related questions
X can do a piece of work in 24 days. When he had worked for 4 days, Y joined him. If the work was completed in 16 days, Y alone can finish that work in:'কথাসাহিত্য' বলতে কোনটি বোঝায়?A can contains a mixture of two liquids A and B in the ratio 7 : 5. When 9 liters of mixtures are drawn off and the can is filled with B, the ratio of A and B becomes 7 : 9. How many liters of liquid A was contained by the can initially?কোনটি অব্যয়ীভাব সমাস?If simple interest on Tk. 600 for 4 years and on Tk. 600 for 2 years combined is Tk. 180, find the rate of interest.'বর্ণপরিচয়' এর লেখক কে?'দুর্গেশনন্দিনী' শব্দের অর্থ কী?A bag contains 6 red balls 11 yellow balls and 5 pink balls. If two balls are drawn at random from the bag. One after another what is the probability that the first ball is red and second ball is yellow.