If `p:q = 5:6` and `q:r =4:7` then `p:q:r` =?

If P:Q = 2:9 and Q :R = 3:7, find P:R.

If p = 4,q = 3 and r = -2, find the values of : (3pq+2qr^(2))/(p+q-r)

If p = 4,q = -3 and r = 2, find the value of : p^(3)+q^(3)-r^(3)-3pqr

If p > q > 0a n dp r < -1 < q r , then find the value of tan^(-1)((p-q)/(1+p q))+tan^(-1)((q-r)/(1+q r))+tan^(-1)((r-p)/(1+r p)) .

If p, q and r are integers, is pq+r even? (1) p+r is even. (2) q+r is odd.

If P=3Q = 7R, find P:Q:R.

Let p,q,repsilonR^(+) and 27pqr>=(p+q+r)^3 and 3p+4q+5r=12 then p^3+q^4+r^5 is equal to

If (x+2) is a common factor of (px^2+qx+r) and (qx^2+px+r) then (a) p=q or p+q+r=0 (b) p=r or p+q+r=0 (c) q=r or p+q+r=0 (d) p=q=-1/2r

If p, q, r are any real numbers, then (A) max (p, q) lt max (p, q, r) (B) min(p,q) =1/2 (p+q-|p-q|) (C) max (p, q) < min(p, q, r) (D) None of these

Given that P 12, Q = 5 and R = 13 also P+Q=R, then the angle between P and Q will be