Question
A bag contains 4 orange balls, 5 black balls, and 6 pink
balls. If 3 balls are taken out randomly, what is the probability that all the three balls are not of the same colour ?Solution
ATQ,
Number of ways in which the person can pick three balls out of 15 balls = ¹⁵C₃ = 455 Number of ways of picking 3 balls of same colour = ⁴C₃ + ⁵C₃ + ⁶C₃ = 4 + 10 + 20 = 34 Probability of picking three balls of same colour = 34 / 455 Required probability = 1 – Probability of picking three balls of same colour = 1 – 34/455 = 421/455
_____________ is one of the most important festivals of Kamakhya temple of Guwahati. It is held every year during the monsoon (mid-June) season, when th...
Which country does not use the Unified Payments Interface (UPI)?
The natural aging of a lake by nutrient enrichment of its water is termed as:
In November 2024, India's monthly GST collections were higher than the previous year by approximately:
One of the National Libraries of India the Khuda Bakhsh Oriental Library is located in which part of India?
What is the maximum limit of the CRR?
Consider the following statements in regards to PM PRANAM:
1. Launched to reduce the use of chemical fertilizers
2. PM – P...
Which type of coal is found in Damodar valley?
Which of the following statements about "Truck farming' is/are correct?
1. Growing vegetables around urban centres to meet the daily demand of...
The Constitution of India borrowed the concept of the Directive Principles of State Policy from the Constitution of
