issb mathematics MCQ #463

Ratio of ages 3:4. Younger is 21. Older?

issb mathematics MCQ #463

  1. Question 1

    Q1. Ratio of ages 3:4. Younger is 21. Older?

    • A) 24
    • B) 26
    • C) 28
    • D) 30

    Answer: 28

    Explanation: Three parts equal 21 so one part is 7 and four parts is 28.