Question Discussion & Solution

Given: MADRAS is coded as NBESBT.

Logic: Adding 1 to the positional values of the letter, as shown below:

Similarly,

Hence, CPNCBZ is the correct answer.

1^st letter: Decrease by - 1

O - 1→ N – 1 → M - 1 → L – 1 → K

2^nd letter: increase by + 2

L + 2 → N + 2→ P + 2 → R + 2 → T

3^rd letter: Decrease by - 1

T - 1→ S – 1 → R - 1 → Q – 1 → P

The correct answer is Alt+F4.

Key Points

• Alt+F4 is a shortcut key that is used to close the currently active window.
• To stop the current window this shortcut has been used.
• For example: if we pressed the shortcut key now while reading this page on your computer browser, it would close the browser window and all open tabs.

How to Use this Shortcut Key

• To use the keyboard shortcut Alt+F4, press Alt andF4 Key simultaneously.

• While running any program in Microsoft Windows, if Alt+F4 is pressed, it closes the currently active program.
• If no programs are open or we are at the desktop, pressing Alt+F4 opens the Shutdown window.

​

Additional Information

Functions of other shortcut Keys in computer

• Alt + Tab
  • Alt+Tab  can be used to switch to any running program that has an application-level window.
  •  It can be used to alternate between the two most recent tasks.
  •  It acts as an alternate between a full-size window and the desktop.
• Alt+E
  • ​It is a shortcut key most often used to open the Edit file menu option for programs supporting a file menu.
  • In Google Sheets, pressing Alt+E opens the Edit file menu option.
  • In Chrome, pressing Alt+E opens the Chrome menu.
  • In Microsoft Internet Explorer and Mozilla Firefox, pressing Alt+E opens the Edit file menu.
• F1
  • Used as the help key in almost every program, it opens a help screen when this key is pressed.
  • Windows Key + F1 opens the Microsoft Windows help and support center.
  • It opens the Task Pane.
• Cntrl+1
  • Ctrl+1 is a shortcut key most often used to switch to the first tab in a browser or other programs with tab support.
  • The "1" (one) used with this shortcut is the "1" at the top of the keyboard, not on the numeric keypad.
  • It is also known as  Control 1 and C-1.

The correct answer is 18 Groups and 7 Periods.

• Modern Periodic Table has 18 Groups and 7 Periods.
• It has 118 Elements.
• Each of the tables has a vertical row is called groups. Elements in groups have similar chemical and physical properties because they have the same number of outer electrons.
• Each of the tables has horizontal rows is called periods. During a period, a gradual change in chemical properties occurs from one element to another.
• It was given by Dmitri Mendeleev.
• The Structure of it is like a bird Grid.
• The Modern Periodic table is used to organize all the known elements.
• Advantages of Modern Periodic Table:- 
  •  It is easier to remember the properties of an element if its position in the periodic table is known.
  • It made the study of Chemistry Systematic and Easy.

Modern Periodic Table:-

Stack

• It is a Last In First Out (LIFO) data structure
• Piles is another name used for stack since data element are placed one above the other and last element on the pile is the first one to be removed (LIFO)

• Push-down list: A list in which the next item to be removed is the item most recently stored (LIFO); Stack is a LIFO data structure
• The stack is used in situations where data have to be stored and then retrieved in reverse order.
• Real-life implementation of the stack is shown:

The ball which is stored last (D) will be the first one to be taken out of the container

Important Points

• Stacks data structures are also called FILO (first in last out)
• push(), pop(), peek() are some of the functions of stack data structure