issb mathematics MCQ #682

10 men do work in 18 days. 15 men in?

issb mathematics MCQ #682

  1. Question 1

    Q1. 10 men do work in 18 days. 15 men in?

    • A) 10 days
    • B) 11 days
    • C) 12 days
    • D) 13 days

    Answer: 12 days

    Explanation: Total 180 man-days so 180 divided by 15 is 12 days. Work each step carefully; ISSB math rewards accuracy under time pressure.