Question

Circle A has 1/3 the radius of circle B, and circle A rolls one trip around circle B. How many times will circle A revolve in total?

Answer 1

circumference=2 pi r
it depends on r only.
\[\frac{ circumference ~of~B }{ circumference ~of~A }=\frac{ 2 \pi r }{ 2 \pi \left( \frac{ 1 }{ 3 }r \right) }\]
=?

Answer 2

but 3 is incorrect

Answer 3

what is the answer or options?

Answer 4

i dun know the answer :(
he said 3 is incorrect

Answer 5

(a) 3/2
(b) 3
(c) 6
(d) 9/2
(e) 9

Answer 6

Remember its REVOLVING.

Answer 7

(b)

Answer 8

oh! it's revolving
isn't 4 correct ?

Answer 9

YES!

Answer 10

but your choices ?

Answer 11

The guy who prepared the question FORGOT to include 4 as the correct answer.

Answer 12

ohk!
btw i like it

Answer 13

i think you solved like this.

\[\frac{ 2 \pi (\frac{ 4 }{ 3 })r }{ 2 \pi \left( \frac{ 1 }{ 3 } r\right) }\]