How-many-numbers-greater-than-350-can-be-formed-from-1-2-3-4-and-5-

Question Number 34718 by tawa tawa last updated on 10/May/18

How many numbers greater than 350 can be formed from 1, 2, 3, 4 and 5

Answered by Rasheed.Sindhi last updated on 10/May/18

1 dd < 350

2 dd < 350

3 dd : 355 (One number)

(Each of Tens & units digit can be filled

in only one way . 1 \times 1 \times 1 = 1)

4 dd & 5 dd : 2 \times 5 \times 5 = 50 numbers

Hundreds in 2 ways

Tens in 5 ways .

Ones in 5 ays

Hence 1 + 50 = 51 numbers

Commented by Joel579 last updated on 10/May/18

4 digits = 5^{4} = 625

5 digits = 5^{5} = 3125

Total = 51 + 625 + 3125 = 3801

Commented by Joel579 last updated on 11/May/18

Since the question {didn}^{'} t tell us how many

digits they want, I think 4 and 5 digits number

can also be included

Commented by tawa tawa last updated on 05/Jun/18

what of : 351, 352, 353, 354, 355 = 5 numbers not 1