Home
Class 8
MATHS
Roshan wanted to type the first 190 whol...

Roshan wanted to type the first 190 whole numbers. Find the number of times he had to press the numbered keys.

Text Solution

Verified by Experts

Number of signle digit whole number from 0 and 9 i.e., number of times he has to press the keys `=10xx1 =10`.
Promotional Banner

Topper's Solved these Questions

  • REAL NUMBERS AND LCM AND HCF

    PEARSON IIT JEE FOUNDATION|Exercise Test your concepts very short type|30 Videos

  • REAL NUMBERS AND LCM AND HCF

    PEARSON IIT JEE FOUNDATION|Exercise Short answer type|15 Videos

  • RATIO, PROPORTION AND VARIATION

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION|60 Videos

  • SETS

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL 3) |8 Videos

Similar Questions

Explore conceptually related problems

Roshan wanted to type the first 190 whole numbers.Find the number of xx he had to press the numbered keys.

Rahul wanted ot type the first 180 natural numbers. Find the number of times he had to press the numbered keys.

What is the mean of the first 20 whole numbers?

Raj wanted to type the first 200 natural numbers,how many xx does he have to press the keys

Find the mean of the first five whole numbers

Nine added to thrice a whole number given 45 . Find the number