issb mathematics MCQ #814

A in 11 days, B in 22 days together?

issb mathematics MCQ #814

  1. Question 1

    Q1. A in 11 days, B in 22 days together?

    • A) 6 days
    • B) 7 days
    • C) 7.33 days
    • D) 8 days

    Answer: 7.33 days

    Explanation: Rates 1/11 plus 1/22 equals 3/22 so about 7.33 days. Work each step carefully; ISSB math rewards accuracy under time pressure.