Question
48 pens are there in a box where 22 are red pens,
‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blue pen is 0.25. Find the ratio of the number of blue pens and black pens.Solution
Probability of getting a blue pen , => p/48 = 1/4 => p = 12 So, number of black pens = 48 – 22 – 12 = 14 Required ratio = 12 : 14 = 6:7
More Probability Questions
How many basic logic gates exists?
A normal CD- ROM usually can store up to _________data?
What is the correct syntax for typing a function into a cell?
Which of the following statement is true about Port
The common name for the crime of stealing passwords is:
Junk e-mail is also called
In which of the following topology, each device is connected to every other device on a network through a dedicated point-to-point link?
What is a new feature introduced in Windows 11?
Zoom in and out button is available on
Which of the following is not anti- viruses’ software?