Question

Q1. A mystery number has 5 digits. There is a digit 9 in the ten thousands place. None
of the other digits are 9 or repeated. What is the smallest number that this mystery
number can be!​

Answer 1

Answer:

let all the numbers be,

a, b, c, d, e

here we have digit 9 at ten thousand place

so,

a= 9

we know 0 is the smallest whole number so the second digit must be 0

then,

b= 0

after 0, the second smallest whole number is 1, so we must place the third digit as 1

c=1

and in this way the 3rd smallest whole number is 2 so we can place the fourth digit as 2

d= 2

and at the end the last digit which is the unit place we have considered it as e so the digit in the unit place we can place the number 3

e= 3

so we have, 90123

#Therefore our required number is 90123.

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