Question

How many segments are required to form 5, 10, 100 digits of the kind 648​

Answer 1

Answer:

(i) 5n+1

Putting n=5, 5×5+1=25+1=26

Putting n=10, 5×10+1=50+1=51

Putting n=100, 5×100+1=500+1=501

(ii) 3n+1

Putting n=5, 3×5+1=15+1=16

Putting n=10, 3×10+1=30+1=31

Putting n=100, 3×100+1=300+1=301.

(iii) 5n+2

Putting n=5, 5×5+2=25+2=27

Putting n=10, 5×10+2=50+2=52

Putting n=100, 5×100+2=500+2=502