Ur doubt i just discussed here > https://www.xtremepapers.com/community/members/mustafamotani.13052/#profile-post-274658
check the post
BTW can u space ur explainiation man , its givin me a headache
What I did was equate the marginal utility of money for both the goods. In other case, Mux/Px=Muy/Py. since we know Mux/Px to be 3, equate that with the prices given for Good Y. The fall in MUy would be from 90 to 60, which from the graph relates to change in 10 units of good Y.i have gone through it...i have no idea.