Question

2. Find a in each of the following proportion
a) 2:85::57:95 b) 2:6::55:11
c) 7:12 :: 0:24 d) 30:40 :: 45 : a ​

Answer 1

Step-by-step explanation:

D)30:40::45:a

30×a=40×45

a=(40×45)/30

a=60