Question 178621
Im not entirely sure but i think by using
40x+50x=165
90x=165
x=165/90
x=1.3333
substitute for x
40(1.333)+50(1.333)see if they add up close to 165
then 1.333 x 60
you get the number of minutes and then you can add it starting at 2:00
Of course like I said i might be wrong but then again i  might not be

Hope it helps