How many natural number less than 30000 can be made from the digits 0,1,2,3,4,5,6.

Question

Arun · Answer

Dear student only 1 and 2 can be used in first olace from starting. hence 2 * 6* 5* 4*3*2 * 1 = 1440 Hope it helps

Aditya Gupta · Answer

note that you have NOT mentioned whether repetition of digits is allowed or not. hence the ques is incomplete. i am solving assuming repetition is allowed. we have 5 places in 30000. now, for first place, we can fill it in 3 ways using either of 0, 1, 2 since it should be smaller than 30000. the remaining 4 places can be filled with any digits with no restriction. so, number of ways to fill the places= 3*7*7*7*7= 3*7^4 however, this also includes 00000, which is not a natural number. hence total no of ways assuming repetition is allowed = 3*7^4 – 1 kindly approve and if u have any doubts regarding how to solve when repetition is not allowed, do let me know.

Sai Soumya · Answer

The answer to your question will be 1440 Dont put zero in the first place , and as nothing is mentioned in the question , repetition is allowed

Thank you for registering.

Register Now and Win Upto 25% Scholorship for a Full Academic Year !

Enter Your Details

Registration done!

How many natural number less than 30000 can be made from the digits 0,1,2,3,4,5,6.

How many natural number less than 30000 can be made from the digits 0,1,2,3,4,5,6.

3 Answers

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

Other Related Questions on Magical Mathematics[Interesting Approach]

ASK QUESTION

Answer and earn gift vouchers

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Complete Self Study Package designed by Industry Leading Experts

Live 1-1 coding classes to unleash the Creator in your Child

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Register Now & Win Upto 25% Scholorship