Python-Basics-Conditional-Loops

Questions covered are:

1. Write a program which will find all such numbers which are divisible by 7 but are not a multiple of 5, between 2000 and 3200 (both included). The numbers obtained should be printed in a comma-separated sequence on a single line.
2. Write a Python program to accept the user's first and last name and then getting them printed in the the reverse order with a space between first name and last name.
3. Write a Python program to find the volume of a sphere with diameter 12 cm. Formula: V=4/3 * π * r 3