Explanation

Headers and footers are primarily visible in the Print Layout view

This view provides a WYSIWYG

Last updated 15-feb-2026

Explanation

The VLOOKUP function in Excel is used to search for a value in the first column of a range

And return a value in the same row from a specified column.

It is commonly used for looking up data in a table or range.

Explanation

2x + 9x = 11

Combine like terms:

11x = 11

Divide both sides by 11:

x = 1

So, the value of 'X' is 1.

Explanation

F7

F7 does a spelling and grammar check in Microsoft Word

F1

Opens the help menu when pressed with the Windows button. 

F2

Allows you to edit the selected folder or file name in Windows Explorer & Cell 

F3

Opens search feature in Windows Explorer 

F4

Alt + F4 closes window 

F5

Starts slideshow in PowerPoint

Refreshes Internet browser pages 

F6

Goes to the next page in a split screen in Microsoft Word

F8

In Excel, enables extend mode for arrow keys

F9

Refreshes document in Microsoft Word

F10

Opens menu bar

F11

Exits and enters full-screen mode in browsers

F12

Opens Save as in Word

Explanation

Given:

• 12 people → Rs. 850 in 10 days

• 8 people → Rs. 340 in ? days

Let the required number of days be x.

Use the formula for compound proportion:

12×10​.850=8×x/340​

Step 2: Solve the equation

120./850​=8x/340​

Cross-multiply:

$$120 times 340 = 850 times 8x Rightarrow 40800 = 6800x Rightarrow x = frac{40800}{6800} = 6$$6800=6

Explanation

Shortcut key for center alignment: Ctrl+E

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Center align means middle of the page

Ctrl + E -- Align selected text or line to the center.

Ctrl + R -- Align selected text or line to the right.

Ctrl + M -- Indent the paragraph.

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SH4-9-2023

Explanation

A formula in Excel always begins with an equal sign (=).

Excel interprets the characters that follow the equal sign as a formula

. Following the equal sign are the elements to be calculated (the operands), such as constants or cell references.

Calculation operators separate these.

Explanation

The F5 key is a function key of the computer.

Start a presentation from the beginning: F5

Start a presentation from the current slide: Shift+F5

Explanation

In MS Word,a blue wavy line indicates a grammar problem.

Blue Wavy Line: Repeated word or phrase.

Red Wavy Line: Potential spelling error.

Green Wavy Line: Possible grammatical error.

Purple Dotted Line: Suggests a contextual refinement for style or clarity.

Explanation

A record is complete information about a database.

The database is Consist of many different files linked with each other for the retrieval of information.