ArithmeticQuestion 364 of 550

Ali finishes a job in 10 days. He works on it for 4 days, and then Saeed finishes the rest in 9 days. How many days does Saeed need to do the whole job alone?

  1. 9 days
  2. 12 days
  3. 15 days
  4. 22.5 days
Show answer

Correct answer: 15 days

Ali did 4/10 of the job. 6/10 is left. Saeed does 6/10 in 9 days, so the whole job = 9 ÷ 0.6 = 15 days.

Test structure: ETEC guide to the GAT

Practice arithmetic

Questions last reviewed: 21 October 2026