This is the OG question:

"A small hose in a machine carries a viscous fluid.

When the machine is first turned on the fluid flows through the hose and the Reynold's number is 1800.

As it warms up, there is a reduction of the density of the fluid of 1.61%, a reduction in the viscosity of the fluid of 6.74%, and an increase in the diameter of the hose by 1.50%.

Assuming the speed of the fluid is kept constant, what is the Reynold's number now?"

I know what I did probably looks like the dumbest thing ever, but how would I go about figuring out the new Reynold's number?

My working for this question is the section at the VERY bottom, with the Reynold's equation, ofc

(ignore the work in progress above lolol)

https://imgur.com/a/ecjv0eM
Thanks for any and all help

-I