TV duration form 7 pm to 8 pm = 1 hour = 60 minutes

Commercials time in minutes = 30 sec x 20 = 600 sec = 10 minutes

10 * 5 = 3x

3x = 50

x = 16.66667

nearly 17%

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

F7

F7 does a spelling and grammar check 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 enter full-screen mode in browsers

F12

Opens Save as in Word

·                     The green represents the Muslim majority in Pakistan

·                     The white stripe represents the various religious minorities.

·                     The crescent represents progress  

·                     The five-pointed star represents light and knowledge.

The national flag of Pakistan was adopted as on 11 August 1947.

The national flag of Pakistan was adopted on 11 August 1947.

ü  Azam Khan Swati Joined the Pakistan Tehreek-e-Insaf on 17 December 2011.

ü  Azam Swati has been made the minister for railways as on 11 December 2020.

ü  He was earlier serving as the minister for narcotics control.

The given sentence is in Past Continuous Tense and it is in active voice. We need to change it into Passive voice.

Rule :

Subject + (was /were) + being + V3 + Optional Agents.

Pakistan conducted a series of nuclear tests on 28 May 1998 at the Chagai test site, Balochistan.

In computing, a window is a graphical control element.

Alternatively referred to as Control W and C-w, Ctrl+W is a shortcut key most often used to close a program, window, tab, or document.

Alternatively referred to as Control N and C-n, Ctrl+N is a shortcut key most often used to create a new document, window or workbook.