Q. 4

Mark the correct alternative in the following:

How many numbers greater than 10 lacs be formed from 2, 3, 0, 3, 4, 2, 3?

A. 420

B. 360

C. 400

D. 300

Answer :

We know, 10 lacs = 10,00,000 and it has 7 places.


The given numbers are 2, 3, 0, 3, 4, 2, 3.


As the required number is greater than 10 lacs, so the 7th place can be filled with all the digits except 0.


So, the place can be filled in 6 ways.


The other 6 places can be filled with other 6 digits, so the total number of ways to fill the remaining 6 places is = 6!


But 2 is repeated twice and 3 is repeated thrice.


So, total numbers greater than 10 lacs be formed from 2, 3, 0, 3, 4, 2, 3 is




=360.

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