Math, asked by nitish98, 1 year ago

the number of natural numbers less than 1000 in which no two digits are repeated

Answers

Answered by sanjana329

12

Step-by-step explanation:

Total number of 1 digit number =9

The number of 2 digit non-repeated number =9×9

⇒81

The number of 3 digit non-repeated number =9×9P2

⇒9×9×8

⇒648

∴ Required number of ways =9+81+648

⇒738

Previous Question

Next Question

Similar questions

Hindi, 8 months ago

yudhishthir samas vigrah...

Science, 8 months ago

choose the answers that apply all matter has mass weight color volume...

Math, 8 months ago

find the value (law of indices) ...

Math, 1 year ago

Amazing booklet made for students of Higher studies by Education ministry. Share this with others so that students and parents understand the available streams and opportunities ☺✌For more information the link is given in the picture TRISHA...

Math, 1 year ago

16. If (3a+ 4b) = 16 and ab = 4; find (9a^2 + 16b^2) Chapter 3 - Algebra - RS Agarwal - ICSE - Class 9th - Exercise 3 A...

Math, 1 year ago

The mean of 11 numbers is 42 if the mean of the first no. Is 37 and that of the last 6 numbers is 46 find the 6th number...

English, 1 year ago

what is the structure of simple present tense present continuous tense Present perfect tense present perfect continuous tense simple past tense past continuous tense past perfect tense past perfect continuous tense simple future tense future continuous tense future perfect tense future perfect continuous tense...

Biology, 1 year ago

how does the loss of water help the plants...