Question

An animator draws 120 cels to make a 5 seconds of a 12-second sequence of a film. How many more cels does she need to draw to complete the film sequence?

(Use a proportion please, also it would be nice if there was an explanation included with the answer!)

Answer 1

She needs 168 more cels to draw to complete the film sequence

Explanation:

120 Cells in 5 seconds

You want 12 seconds.

Ratio (Proportion)

120:5

Lets find the "unit rate" of the proportion.

120/5 = 24

So the unit ratio is 24:1

Now, we can deduce to it being:

120:5

240:10

264:11

288:12

She has 120 done.

So, 288-120 = 168.

She needs 168 more cels to draw to complete the film sequence