Try a short practice set and review the explanation for every answer.
Practice questions for self-study. This is not an official exam or a prediction of any recruitment test.
20 ÷ 100 × 250 = 50.
In the present simple, a singular third-person subject takes “goes”.
Each number is doubled. 24 × 2 = 48.
CPU means Central Processing Unit. It executes program instructions.
Add the numbers and divide by their count: (10 + 20 + 30) ÷ 3 = 20.