Question
A bag contains red, blue, and green balls in the ratio
of 2:4:5. If two balls are randomly selected from the bag, the probability that both are blue is 1/8 . Determine the total number of balls in the bag.Solution
Let the number of red, blue and green balls in the bag are 2x, 4x and 5x respectively. Total number of balls in the bag = 2x + 4x + 5x = 11x So according to question: 4xC2/11xC2 = 1/8 4x (4x – 1)/ 11x (11x – 1) = 1/8 (16x – 4)/ (121x – 11) = 1/8 128x – 32 = 121x – 11 7x = 21, x = 3 So the total number of balls in the bag = 33
When a person submits a proposal directly to the Board and receives approval, what must they do next?
Who shall constitute the Employees’ State Insurance Corporation under the Code on Social Security, 2020?
A public servant accepts money through a middleman. According to the PC Act, liability arises if:
As per the Bharatiya Nagarik Suraksha Sanhita, Section 180, who has the authority to examine orally any person supposed to be acquainted with the facts...
The Article of a company may be altered by _____________
How many members are present in Pension Fund Regulatory and Development Authority?
When a partner exercises his authority in an emergency and protects the firm from loss then such act _____.
A sues B for Rs. 1000 and shows entries in his account book showing B to be indebted to him to this amount. This entry is
Who can be competent witness?
Which section of the Act excludes oral evidence when the terms of a contract have been reduced to writing?Â
