Multiple choice

The questions given below contain three statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the question? What will be the increase percent in volume? I: An ice cube is dipped into 15 litre water II: If radius of a cylinder increases by 20% and height increases by 30% III: If the height of ice cube is 10 cm.

  1. Only I and II

  2. Only II and III

  3. II or (I and III)

  4. Any of two statements

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement II gives complete information for a cylinder: radius increases by 20%, height by 30%. New volume = π(1.2r)²(1.3h) = 1.872πr²h, which is an 87.2% increase. Statements I and III together describe an ice cube scenario. The question ambiguously doesn't specify the object, so either path works.

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