[" 49.An integer "P" is added to another integer "Q" ,then "],[" the result is "R" .If "R" is "-12" more than "P" ,then find "],[" Q.Also find "R" when "P" is "42" ."]

The positive integers p ,q ,&r are all primes if p^2-q^2=r , then find all possible values of r

If P-Q-R and if d(P,R)=10 , d(Q,R)=3 , then find d(P,Q) .

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

1 meter long metallic wire is broken into two unequal parts P and Q. P part of the wire in uniformly extended into another wire R . Length of R is twice the length of P and the resistance of R is equal to that of Q . Find the ratio of the resistance P and R and also the ratio of the length P and Q

A 2m long metallic wire is broken into two unequal points P and Q. P part of the wire is uniformly extended into another wire R. Length of R is twice the length of P and resistance of R is equal to that of Q. Find the ratio of resistances of P and R and also the ratio of lengths of P and Q.

1 meter long metallic wire is broken into two unequal parts P and Q P part of the wire in uniformly extended into another wire R . Length of R is twice the length of P and the resistance of R is equal to that of Q . Find the ratio of the resistance P and R and also the ratio of the length P and Q