Subject: General Aptitude · Chapter: Volume and Surface Area · Exam: · Marks: · Difficulty:
What is the height of a circular cone? I. The area of that cone is equal to the area of a rectangle whose length is 33 cm. II. The area of the base of that cone is 154 sq. cm.
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.
Explanation
II. gives the value of $r$. But, in I, the breadth of rectangle is not given. So, we cannot find the surface area of the cone. Hence, the height of the cone cannot be determined. $\therefore$ Correct answer is (d).
Explanation as extracted from the printed page; notation may be imperfect.