Answer
First we need to number each block from 1 to 2500. Then we use a random number table or technology to generate a sample of 10 blocks. One such sample is:
Block 1201, Block 62, Block 95, Block 2342, Block 1189, Block 18, Block 129, Block 1006, Block 2032, Block 1198
(Other answers are possible.)
Work Step by Step
As given above.