A design on the surface of a balloon is 5 cm wide when the balloon holds 71 cm of air. How much air does the balloon hold when the design is 10 cm wide? Explain the method you use to find the amount of air.

Question

A design on the surface of a balloon is 5 cm wide when the balloon holds 71 cm  of air. How much air does the balloon hold when the design is 10 cm wide? Explain the method you use to find the amount of air.

mr_perfection_xd · Answer

If there is some kind'a secret method i don know about....but in any case, 
 5cm wide = 71cm air which means,
 10cm wide would be doubled the cm of air right?
In my modest and simplest analysis, i find the answer to be 142.
71*2