TANCET 2008 Quant Question 5 : Circles - Mensuration
If x units are added to the length of the radius of a circle, what is the number of units by which the circumference of the circle is increased?
. Choice (4)
Let the radius of the circle be 'r' units.
The circumference of the circle will therefore be
If the radius is increased by 'x' units, the new radius will be (r + x) units.
The new circumference will be
Or the circumference increases by
Correct Answer (4)
Level of difficulty
: Very Easy
More Questions on Mensuration - Solid Geometry
CAT, XAT, TANCET Practice Questions and Answers : Listed Topicwise