….just talk your way thru this…... 1. wire2 is 3 x longer than wire1….... thus resistance of wire2 has to be 3 x larger than wire1 on the basis of length, alone. 2. wire 2 has a diameter that is 1.5 x larger than wire1…. thus resistance of wire2 has to be 1.5^^2 = 1.5*1.5 times smaller than wire 1 on the basis of diameter , alone. 3. the cumulative effect is that wire 2 is 3/1.5*1.5 = 2/1.5 = 1.333… times larger than wire 1….. or in other words 33%larger than wire 1. In equations one has R1 =k * L1/D1^^2 R2 =k * 3*L1/(1.5*D1)^^2 …... you can solve it from there…... <g> …..