Compared effort when developing Android and iPhone app
Given:

 -  A desired application called APP wich will present 2 "forms" and will comunicate with a web server to call 3 Web Methods.
 - One developer with equal expertise on iPhone and Android platforms.
 - X: required effort to build APP for Android only.
 - Y: required effort to build APP for iPhone only.
 - X = K1 * Y where K1 is a real number.
 - Z = K2 * (X + Y) where K2 is a real number and Z is defined as the required effort to build  APP for both Android an iPhone.

Please answer:

 - What is the approximate value of K1?
 - Assuming that the formula for Z is acceptable, what is the approximate value of K2?


Compared effort when developing Android and iPhone app
===

Given:

 -  A desired application called APP wich will present 2 "forms" and will comunicate with a web server to call 3 Web Methods.
 - One developer with equal expertise on iPhone and Android platforms.
 - X: required effort to build APP for Android only.
 - Y: required effort to build APP for iPhone only.
 - X = K1 * Y where K1 is a real number.
 - Z = K2 * (X + Y) where K2 is a real number and Z is defined as the required effort to build  APP for both Android an iPhone.

Please answer:

 - What is the approximate value of K1?
 - Assuming that the formula for Z is acceptable, what is the approximate value of K2?

