The system of equations: x+4y-2z=3, 3x+y+5z=7, 2x+3y+z=5 has:
1. a unique solution 2. no solution 3. an infinite number of solution 4. None of these
A basketball team won 4 more matches than it lost. If it won 3/4of its matches how many matches did it play?
'(1) 10 .
(2) 15
(3) 8
(4) 25
