Question

how many natural numbers less 4000 can be formed using digits 2,4,0,7​

Answer 1

Answer:

1.2407

2.2074

3.2047

4.2470

5.2704

6.2740

7.0247

8.0274

9.0427

10.0472

11.0742

12.0724

Answer 2

37 natural  numbers less than 4000 can be formed using  2,4,0,7​

Step-by-step explanation:

how many natural numbers less 4000 can be formed using digits 2,4,0,7​

(assuming no repetition of digit)

1 Digit number = 4   ( 0 , 2 , 4 , 7)

2 Digit numbers = 3 * 3  = 9

3 Digit Numbers = 3 * 3 * 2 = 18

4 Digit number - 1st Digit can be only 2  Hence 3 * 2 = 6 Numbers

Total Numbers = 4 + 9 + 18 + 6  = 37

37 natural  numbers less than 4000 can be formed using  2,4,0,7​

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