Quantitative Aptitude - Arithmetic Ability Questions

If ax= by= cz and b2= ac, then what is 1x+1z equal to ?

If xy = 22 and x2+ y2= 100, then what will be the value of (x + y)?

To cover a distance of 216 km in 3.2 hours, what should be the average speed of the car in meters/second?

If 35% of A's income is equal to 25% of B's income, then the ratio of A's income to B's income is

If A = (-14 + 4) and B = 4 - 14, then AB = 

In the given figure, E and F are the centers of two identical circles. What is the ratio of area of triangle AOB to the area of triangle DOC?

A Rs 1000 box of cookies is offered at 10% discount and a Rs 400 bar of chocolate at 8% discount. If we buy 2 boxes of cookies and 3 bars of chocolate, what is the effective discount we get (in %)?

If 27% of an electricity bill is deducted, Rs 1825 is still to be paid. How much was the bill?