Question

12.When 40% percent of a number is added to
another number the secondnumber increases to its
20%. What is the ratio between the first and
second number?
a) 2:1
b)1:2
c)2:3
d)3:4
e) None of these​

Answer 1

Answer:

Discretization of Navier–Stokes equations in the vicinity of complex ... secondary velocity in non-circular ducts is only 1–3 % of the streamwise bulk velocity, ... radii ({θπ/2} = {0, π/2, π, 3π/2} and {θπ/4} = {π/4, 3π/4, 5π/4, 7π/4}) are shown for ... u+ z,rms. 50. 150. 100. 200. 0. 1. 2.

Step-by-step explanation: