general math MCQ #665

If the radius of circle is increased by 20% its area is increased by:

general math MCQ #665

  1. Question 1

    Q1. If the radius of circle is increased by 20% its area is increased by:

    • A) 44%
    • B) 40%
    • C) 20%
    • D) No change

    Answer: 44%

    Explanation: New area = π(1.2r)² = 1.44πr²; the area increases by 44%. Show the calculation clearly when solving similar quantitative items.