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IKMC 2027 - Grades 1-2 - Self-study SET 10 - Thematic Batch 3 Question 6

IKMC · IKMC 2027 - Grades 1-2 - Self-study SET 10 - Thematic Batch 3

Question 6

To escape the poisonous jellyfish, Dory and Marlin race by jumping on the jellyfish bells as shown. Marlin repeatedly jumps 3 jellyfish positions forward, then 1 backward. Dory repeatedly jumps 4 jellyfish positions forward, then 2 backward. Who escapes first, and after how many forward jumps?

Question illustration
  1. Dory first, after 5 forward jumps
  2. Marlin first, after 3 forward jumps
  3. Dory first, after 4 forward jumps
  4. Marlin first, after 4 forward jumps
  5. Cannot be determined