How many times does a typist have to press the keys of a keyboard to type the first five hundred positive integers?

From 10 to 99, there are 90 two-digit numbers, i.e., the keys are pressed 2 * 90 = 180 times. From 100 to 500, there are 401 three-digit numbers, i.e., the keys are pressed 3 * 401 = 1203 times. Hence, option 4.

How many times the keys of a computer be pressed to type the number from one to hundred?

Answer Expert Verified. 792 times should the keys of a keyboard be pressed in order to type the first 300 counting numbers.

How many times are number keys repeat on a standard keyboard?

Strictly speaking, 8 times!

How many times does the key of a typewriter have to press in order to write numbers from 121 to 1346?

So the naïve answer is “4025 key presses”.

How many keystrokes are required to type first 1000 natural numbers without any spaces )?

1000 is a four-digit number which requires 4 keystrokes.

How many times should the keys of typewriter be pressed in order to write the first 400 counting numbers?

Answer is “1092”

How many times number keys is there on the keyboard?

How many number keys are on a keyboard? If you only count the top row of number keys on a keyboard, numbers 1 through 0, there are ten number keys on the keyboard. If the keyboard also has a numeric keypad (1 through 0), there are twenty number keys on the keyboard.

How do you use the number keys on a laptop keyboard?

Go to Start, then select Settings > Ease of Access > Keyboard, and then move the slider under On-Screen Keyboard. A keyboard appears on the screen. Click Options and check Turn on numeric keypad and click OK.

How many numbers keys are there on a keyboard?

A numeric keypad, number pad, numpad, or ten key, is the palm-sized, usually-17-key section of a standard computer keyboard, usually on the far right.

How many keystrokes in the keyboard are required to type numbers from 1 to 800?

∴ The keystrokes are required to type numbers from 1 to 800 is 2292.

How many times key of typewriter is pressed between two natural numbers?

The big companies don’t want you to know his secrets. Originally Answered: how many times key of typewriter be pressed in order to type first 299 natural numbers by pressing space bar once between any two successive natural numbers? Hence the answer is 789 + 298 = 1087. What is the sum of the number between 200 and 250, which is a multiple of 3?

How many keys are there in a 9 digit number system?

* Numbers 1-9: 1 key each for 9 numbers, for a total of 9. * Numbers 10-99: 2 keys each for 90 numbers, for a total of 180. (2 * 90 = 180) * Numbers 100-999: 3 keys each for 900 numbers, for a total of 2700. * Numbers 1000-9999: 4 keys each for Something went wrong. Wait a moment and try again. Try again

Why are my keys registering as numbers instead of letters?

You’re typing on your laptop and, suddenly, some of the keys start registering as numbers and symbols instead of letters. What’s going on? Most likely, the answer lies with your Num Lock key.

How many keystrokes does it take to Type 1000 – 121?

There are 1000 − 121 = 879 3-digit numbers in that range, and 347 4-digit numbers (1000, plus 1001–1346). Which means there are 3 ∗ 879 + 4 ∗ 347 = 4025 digits to be typed. So the naïve answer is “4025 key presses”. Do you need a separator (e.g. a space or newline) between numbers?