0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

If the diameter of a circle is increased by 200%, then its area is increased by
  1. 100%
  2. 200%
  3. 300%
  4. 800%

A
100%
B
200%
C
300%
D
800%
Solution
Verified by Toppr

Let the original diameter be d

The original area of circle =πd24

If the diameter increased by 200, then

New diameter will be =300100d=3d

Now, the new area =π4(3d)2=9πd24

Therefore, increased (%)

=8πd24πd24×100

=800%

Hence, this is the answer.

Was this answer helpful?
0
Similar Questions
Q1
If the diameter of a circle is increased by 200% then its area is increased by
View Solution
Q2
If diameter of a circle is increased by 40%, then its area increase by

(a) 96%

(b) 40%

(c) 80%

(d) 48%
View Solution
Q3
On increasing the diameter of a circle by 40%, its area will be increased by
(a) 40%
(b) 80%
(c) 96%
(d) 82%
View Solution
Q4
If the height of a cone is doubled, then its volume is increased by
(a) 100%
(b) 200%
(c) 300%
(d) 400%
View Solution
Q5
If the radius of a circle is increased by 4 times then its diameter increases by
View Solution