Question
Ten years from now, the ages of A and B will be in a
ratio of 7:9. C's current age is half of B's current age. Five years from now, the ratio of C's age to D's age will be 3:4. If the average of C's and D's current ages is 16, what is A's current age?Solution
C + D=32 years After 5 years=32 + 10 =42 years 7x=42 years x= 6 years C=3 * 6= 18 years C’s present age=18 – 5 =13 years B’s present age=13 * 2 =26 years After 10 years B’s age=26 + 10 =36 years A’s age after 10 years=7 / 9 *36 =28 years A’s present age=28 – 10 =18 years
Which of the following is not a function of the control unit ?
What is the smallest and largest font size available in Font Size tool on formatting toolbar?Â
What does the term "GUI" stand for?
Which among the following type of computer is also known as notebook?
Which of the following is an e-mail clint of Microsoft?
The OSI model is divided into _______ processes called layers.
What will the function given below return in MS-Excel 2010?
=MATCH(12,{10,13,30,40,60},1)
Which indent is used for moving the text lines to the left margin in MS Word?
Decreasing the amount of space required to store data and programs is accomplished by ________.
Storage capacity of magnetic disk depends on