Home  / Mathematics
Algebra
Arithmetic
Aptitude

If (x2 + 1/x2) = 102, then (x - 1/x) is :

B. 10
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

X and Y together complete a work in 8 hours. If X alone can complete it in 12 hours than Y alone can complete it in

A. 24 HOURS
Posted in:  Time & Work -  Aptitude -  Mathematics

Some machines complete the work in 4 days. But if 4 other machines are included in this work, then the job shall be completed in 2 days. If capacities of all machines are same, then in how many days 2 machines can complete this work ?

B. 8 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

Value of k foe which (x - 1) is a factor of (x3 - k) is :

B. 1
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

The solution of the system of simultaneous linear equations
4x - 3y = 7 and 7x + 5y = 2 is :

D. X = 1, Y = -1
Posted in:  Linear Equations -  Algebra -  Mathematics