Q) If selling price of 5 pens is equal to the cost price of 4 pens then overall effect of transaction is
A)20% gain
B)20% loss
C)10% gain
D)10% loss
Q)The sum of two numbers is 25 and their difference is 13 then their product is
A)104
B)114
C)315
D)325
Q)
= 64 then the value of n is
A)2
B)4
C)6
D)12
Q)If x=3+2√2 then the value of √x – 
is
A)1
B)2
C)2√2
D)3√3
Q)5 out of 2250 parts of earth is Sulphur. The percentage of Sulphur in earth is
A)11/50
B)2/9
C)1/45
D)2/45