Queries in Quantitative Aptitude

Sangeetha (Nil) (40 Points)

07 March 2010  

Hi,

I am preparing for this June's CPT exam. Can anyone please help me with the below queries?

1. If log x + log y = log (x+y) then y can be expressed as

(a) x-1             (b) x                       (c) x/x-1                            (d) none of these

 

2. If log x to the base 2 + log x to the base 4 + log x to the base 16 = 21/4 then x is equal to

(a) 8                (b) 4                       (c) 16                              (d) none of these

3. If x to the power 1/p = y to the power 1/q = z to the power 1/r and xyz =1, then the value of p+q+r is

(a) 1                (b) 0                       (c) 1/2                             (d) none of these

Can you please work it out?