why is it that when I solve sectional tests of quant, varc, and dilr, my scores are relatively okay around 60-65 when all the three sectionals are added but when i give a mock, my score is around 30?

rather give 3 sectionals in a row ( first varc then lrdi and last qa )...or u can take a 5 to 10 minute break between each sectional..in that way u can create almost the same environment as u experience in mocks.

Because you give each sectional with a fresh state of mind, but in mock your mind gets tired after each section, so your performance level goes down in the next section, affecting the overall score

So true....I'm also facing the same problem even my scores in the full length mocks is even lower..