Hi Can anyone please help with these questions from Gmat Prep-
1) The rate of reaction is directly proportional to the square of the concentration of A and inversely proportional to concentration of B. if B increases by 100%, which of the following is closest to the %change in concentration of A required to keep the rate unchanged?
a.100% decrease
b.50%decrease
c.40%decrease
d. 40% increase
e.50% increase
Q.2-Three grades of milk;1%, 2% and 3% fat by volume. X gallons of 1%, y gallons of 2%, z gallons of 3% are mixed to give x+y+z gallons of 1.5%. what is X in terms of y and z?
A.y+3z
B.(Y+Z)/4
C. 2Y+3Z
D.3y+z
E.3y+4Z
1) The rate of reaction is directly proportional to the square of the concentration of A and inversely proportional to concentration of B. if B increases by 100%, which of the following is closest to the %change in concentration of A required to keep the rate unchanged?
a.100% decrease
b.50%decrease
c.40%decrease
d. 40% increase
e.50% increase
Q.2-Three grades of milk;1%, 2% and 3% fat by volume. X gallons of 1%, y gallons of 2%, z gallons of 3% are mixed to give x+y+z gallons of 1.5%. what is X in terms of y and z?
A.y+3z
B.(Y+Z)/4
C. 2Y+3Z
D.3y+z
E.3y+4Z
