Question

12. If m, t, s, r are in proportion then which one among the following
statements is true?
(A) m:t=s:r
(B) mr = st
(C) r:s=t:m
(D)all of the above​

Answer 1

Answer:

(D) all of the above

Step-by-step explanation:

If m, t, s, r are in Proportion,

m : t : : s : r

=> m : t = s : r

In Proportion,

Product of extreme terms = Product of mean terms

=> m × r = t × s

=> mr = st

m/t = s/r

=> r/s = t/m

=> r : s = t : m

Hence, all the above statements are true.

Answer 2

D is the right answer

please mark a brainliest