Question

Write all 4-digit number that can be formed with the digits 2 and 5 using both digits equal no of times also find their sum

Answer 1

Answer:

no. of possibilities of no. that can be formed with the digits 2 and 5 using both digits equal no. of times are

2255

5522

5252

2525

5225

2552

=6 possibilities

and sum

2255+5522+5252+2525+5225+2552=

23331