Question

Find the compound ratio of 4:5 and4:5

Answer 1

Answer:

If you consider the question as a:b and c:d then

For compound ratio the formula is ad:bc then the answe ia 20:20

Answer 2

Answer:

Compound ratio for the ratios x:y and a:b is defined as the multiple of a and x ratio multiple of y and b i.e:

x*a : y*b

Here X = 4 ,y=5 ,a=4 ,b=5

x *a:y*b

4*4:5*5

16:25

Thus the compound ratio is 16:25.