Quantitative Aptitude - Arithmetic Ability Questions

If 3x - 8(2 - x) = -19, then the value of x is

Find the value of 'y' if y84 = 225

If 3.5x = 0.07y, then find the result of [y-x / y+x]

A, B and C can do a job working alone in 12, 16 and 24 days respectively. In how many days they can do the job if they worked together?

The smallest number, which should be added to 756896 so as to obtain a multiple of 11, is

ABCD is a quadrilateral in which BD and AC are diagonals then

The average salary of all workers in a workshop is Rs.12000. The average salary of 7 technicians is Rs.15000 and the average salary of the rest is Rs.9000. The total number of workers in the workshop is

Of the 3 numbers whose average is 112, the first is 3/13 times the sum of other 2. The first number is _____.