Question

Write all the possible two digit number that can be formed by using the digit 1, 5, and 9 where the digit can be used only once. Also find the sum of the numbers​

Answer 1

all possible two digit numbers that can be formed by using 1,5,9:-

1. 15
2. 19
3. 51
4. 59
5. 91
6. 95

sum of these numbers=

15+19+51+59+91+95=

330

hope it helps you

Answer 2

1= 12,14

5= 51,53

9 =96,98

sum = 12+14+51+53+96+98= 324

hope it helps you