Question

The difference between the largest 7-digit number and the largest 7-digit number with three distinct
digits is
(a) 12
(b) 10
(c) 123
(d) 10012
number six million six hundred sixty-six thousand six hundred sixty-six can be read in the Indian​

Answer 1

Answer:

largest 7 digit no =9999999

largest 7 digit no with 3 distinct nos =9999987

difference =12

so (a) is correct

Answer 2

Answer:

Any number will be made up of digits 0 to 9.

Thus 9999999 is the largest 7 digit number. However the question says different digits. Since it is a 7 digit number & you want the largest forget it has the smallest digits of 0, 1 and 2.

The 7 digit largest number with different digits will consist of 3, 4,5,6,7,8,and 9. Obviously to get the largest number the highest digit should be in the highest location and the smallest digit in the unit location. Therefore the required answer is 9876543 assuming no digits are repeated.