Question

10. How many four digit numbers will not
exceed 7432 if they are formed using the
digits 2,3,4,7 without repetition?
please don't give any spam answer​

Answer 1

Answer:

24

Step-by-step explanation:

the numbers on thousands place will be - 7,4,3,2

i.e = 4

the numbers on hundredth place will be - 3,2,1

I.e = 3

the numbers on tenth place will be - 2,1

i.e = 2

and the number in the units place will be - 2

i.e= 1

therefore by multiplication, 4 × 3 × 2 × 1 = 24