Rahul wanted ot type the first 180 natur...

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

A

384

B

433

C

416

D

448

Text Solution

Verified by Experts

The correct Answer is:

B

Promotional Banner

Promotional Banner

Topper's Solved these Questions

REAL NUMBERS AND LCM AND HCF
PEARSON IIT JEE FOUNDATION|Exercise level -4|1 Videos
REAL NUMBERS AND LCM AND HCF
PEARSON IIT JEE FOUNDATION|Exercise level -5|1 Videos
REAL NUMBERS AND LCM AND HCF
PEARSON IIT JEE FOUNDATION|Exercise Level -2|18 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

PEARSON IIT JEE FOUNDATION-REAL NUMBERS AND LCM AND HCF -level -3

Rahul wanted ot type the first 180 natural numbers. Find the number of...
Text Solution
|