Question
A bowl contains 9 blue balls, 7 white, and 5 black
balls. If 2 balls are drawn in one go, then the probability of exactly one ball being blue is:Solution
In total, we have 9+7+5=21 balls. We have drawn 2 balls; we can draw them in 21C2 ways = 21! ÷ (19! ×2!) = 210 ways. In those two balls, we need one to be a blue ball, so we can include that in 9C1 ways = 9 ways. The remaining ball may be any color ball but not white, so we select other balls in 12C1 ways= 12ways. Probability= (9×12)/210 =18/35.
Stressed assets of commercial banks worth _____________ have been identified to be taken up in the first phase by the NARCL.
India signed a 15-year contract with the International Seabed Authority (ISA) for exploration of Polymetallic Sulphides in which ridge of the Indian Ocean?
Which player reclaimed the world No. 1 ATP ranking by winning the 2025 Paris Masters?
According to Mukul Roy’s political career, during which period did he serve as Union Minister for Railways in the UPA government?
Which information technology company has partnered with Microsoft Azure OpenAI Service to facilitate the adoption of generative Artificial Intelligence ...
What is the primary objective of the joint space venture announced by the I2U2 group of India, Israel, the United Arab Emirates, and the United States?
The outstanding amount for FCNR (B) deposits as of August 2024 is:
What is the total investment planned under the India–FAO Blue Ports collaboration for upgrading Vanakbara and Jakhau ports?
Axis Max Life Insurance partnered with Saarathi Finance to provide which type of insurance to MSMEs?
What is the name of Meta’s new standalone AI app powered by its Llama 4 system?
Relevant for Exams:
