If `p : q=2:5,` then `(25 p+14 q)/(5p+7q)=` (a)`8:5` (b) `5:8` (c) `8:3` (d) `3:8`

If p:q=2:5, then (25p+14q)/(5p+7q)=8:5 (b) 5:88:3(d)3:8

If (25p + 14q)/(5p + 7q) = (8)/(3) then find p:q.

If p=tan8A,q=tan5A,r=tan3A, then (p-q-r)/(pqr)=

If (2p+1/p)=4 , the value of (p^3+1/(8p^3)) is (a) 4 (b) 5 (c) 8 (d) 15

if p xx q=p+q+(p)/(q) then 8xx2

Simplify (2.5 p-1.5 q)^2-(1.5 p-2.5 q)^2

If p + q = 6 and pq = 8 , then p^(3) + q^(3) is equal to

In Figure, Q R is a common tangent to the given circles touching externally at the point T . The tangent at T meets Q R at P . If P T=3. 8 c m , then the length of Q R (in cm) is (a) 3.8 (b) 7.6 (c) 5.7 (d) 1.9