Question
The current average age of 'Akhil', 'Bittu', and 'Chinu'
is 42 years. 'Bittu's' age is 25% greater than 'Akhil's'. Twelve years from now, the age ratio of 'Akhil' to 'Chinu' will be 2:1. Calculate the difference in the current ages of 'Akhil' and 'Bittu'.Solution
ATQ, Let the ages of ‘Akhil’ and ‘Chintu’, 12 years hence from now be 2a years and ‘a’ years, respectively Therefore, present age of ‘Chintu’ = (a – 12) years Present age of ‘Akhil’ = (2a – 12) years Therefore, present age of ‘Bittu’ = 1.25(2a – 12) years According to the question, 1.25(2a – 12) + 2a – 12 + a – 12 = 42 × 3 Or, 5.5a – 39 = 126 Or, 5.5a = 165 Or, a = 30 Therefore, present age of ‘Akhil’ = 2a – 12 = 48 years Present age of ‘Bittu’ = 1.25 × 48 = 60 years Required difference = 60 – 48 = 12 years
VIRUS stands for________
What kind of attempts is made by individuals to obtain confidential information from a person by falsifying their identity?
 Which of the following are examples of presentation software?
A professionally designed blank document is called a:
Which of the following is not an operating system?
High level programming language can be converted to machine language using which of the following ?
A/An ________ is a computer program that spreads by inserting copies of itself into other executable code or documents.
What is the main function of ROM (Read Only Memory) in a computer?
You can use the _______ keyboard shortcut to select all files in a folder.
Android Operating system is an example of which kind of Source Model?