What number comes next in the series 5, 10, 20, 40, 80, ...?
Answer and explanation
Correct answer: B. 160
- Step 1: Each term is 2 times the previous one, so the next term is 80 x 2 = 160. Answer: 160. Why not the others: 82, 120 and 165 don't fit.
Practise more Series and problem solving.
Free questions with an explanation for every one, and full timed Medical Entrance Exam (University of Iceland) mock tests.
More Series and problem solving questions
- What number comes next in the series 2, 4, 8, 16, 32, ...?
- What number comes next in the series 5, 22, 10, 17, 15, 12, ...?
- What number comes next in the series 10, 17, 26, 37, 50, ...?
- What number comes next in the series 1, 6, 7, 13, 20, 33, ...?
- Ana is 9 years old and her mother is 3 times as old as she is. How old will her mother be in 3 years?
- Rosa is taller than Luis, Luis is taller than Mateo, and Mateo is taller than Carla. Who is the shortest?