Question

choose any multiple of 100 between 1000 and 5000 explain briefly

Answer 1

examples of multiples of 100 are 2000 ,4000,200.but when its in between  1000 and 5000 you have to take a larger number so the answer can be 2000 ,3000,4000

Answer 2

Some multiples of 100 are 1300 , 5500 ,300 etc.
But according to the condition, 
it must be between 1000 and 5000
So , some of them are 1100,1200 etc.
The whole solution set=(x:x=100n , n∈N and 1000>x<5000)