##Docs

DIFFICULTY MARKS EASY 1 MEDIUM 2-3 DIFFICULT 3-4 RANDOM ?

Easy

1. AP 1
2. GP 1
3. square series / cube series 1
4. alternate AP's 1
5. odd/even series 1

MEDIUM

1. Easy 1
2. Diffrence in AP 2
3. Diffrence in GP 2
4. n is in AP/GP 3
5. introducing d (only GP) 2
6. AP + Power 2

Difficult

1. Medium 2
2. AGP 4
3. AP + GP + POWER + D 4
4. n is PRIME 3
5. fibonacci 3