Question
Four years from now, the age of 'A' will be 60% of the
age of 'B' at that time. The combined present ages of 'A' and 'B' exceed the current age of 'C' by 27 years. The present age of 'C' is 25 years. Determine the age of 'D' three years from now, given that 'D's current age is 45% more than 'A's present age.Solution
Let the present ages of 'A' be 'm' years. Combined present ages of 'A' and 'B' = 25 + 27 = 52 years Present age of 'B' = (52 - m) years ATQ, (m + 4) = 0.6 X (52 - m + 8) Or, m + 4 = 36 - 0.6m Or, m + 0.6m = 36 - 4 So, 'm' = (32/1.6) = 20 Therefore, required age of 'D' = 1.45m + 3 = 1.45 X 20 + 3 = 32 years
The most popular combination of 'shortcut keys' to 'copy' some selected text and 'paste' the same at some other location in most of the MS Windows appli...
Which of the following colored wavy lines is used to represent spelling errors in an MS Word 365 document?
In MS Word 365, which keyboard shortcut is used to cut the selected text?
Which Excel function is used to count the number of cells in a range that meet specified criteria?
Which of the following software is generally preferred most, to create an animated multimedia presentation on the topic 'Health and Hygiene in a Boardin...
How can you insert a page break in Microsoft Word?
Which out of the following is the correct file extension of an Excel file?
In Microsoft Excel, which shortcut key is used to insert a page break?
How can you insert a comment in a specific section of the text in Microsoft Word?
Serial ports are also called