if `m:n=4:9` and `n:s=3:7` , find `m:s`

If m=root3(125) and n=root3(64) , find the value of m-n-(1)/(m^(2)+mn+n^(2)) .

If m = 1, n = 2 and p = -3, find the value of : 2mn^(4)-15m^(2)n+p

If (m + n)/(m + 3n) = (2)/(3) , find : (2n^(2))/(3m^(2) + mn) .

Find (m+n)-:(m-n) , if : (i) m=(2)/(3) "and" n=(3)/(2) (ii) m=(3)/(4) "and" n=(4)/(3) (iii) m=(4)/(5) "and" n=-(3)/(10)

There are n A.M. s between 3 and 29 such that 6th mean : (n - 1) th mean ::3 :5 then find the value of n.

If l : m = 2 (1)/(2) : 1(2)/(3) and m : n = 1 (1)/(4) : 3 (1)/(2) , find l : m : n

If (m-5, n + 3) = (7, 9), find the values of m and n.

Find the value of m and n : if : ( 5+ 2sqrt3)/( 7+ 4sqrt3) = m + n sqrt3

m and n are two rational numbers such that mxxn=-(25)/(9) . (i) if m=(5)/(3) , find n, (ii) if n=-(10)/(9) , find m.

If m,n in N and m=(n^2-n-35)/(n-4) , then find the value of m.