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Q: Question: Find the average size of balls? Statement: 1) Radius of 6 balls is 3cm, 4cm, 7cm, 5cm, 6cm and 4cm respectively. 2) The color of the balls is red.
  • A. Either statement 1 or 2 is sufficient
  • B. Only statement 2 is sufficient
  • C. Both statement 1 and 2 are sufficient
  • D. Only statement 1 is sufficient
Correct Answer: Option D - In statement (1), the radius of 6 balls is given, so that taking the volumes of all and adding all then dividing by 6 will give the average size of balls and in statement (2) there is mention of red colored balls which is not required to answer the question. Therefore, it is clear that, only statement (1) is sufficient to answer the question.
D. In statement (1), the radius of 6 balls is given, so that taking the volumes of all and adding all then dividing by 6 will give the average size of balls and in statement (2) there is mention of red colored balls which is not required to answer the question. Therefore, it is clear that, only statement (1) is sufficient to answer the question.

Explanations:

In statement (1), the radius of 6 balls is given, so that taking the volumes of all and adding all then dividing by 6 will give the average size of balls and in statement (2) there is mention of red colored balls which is not required to answer the question. Therefore, it is clear that, only statement (1) is sufficient to answer the question.