Quantitative Aptitude - Arithmetic Ability Questions

A cuboid of size 50 cm × 40 cm × 30 cm is cut into 8 identical parts by 3 cuts. What is the total surface area (in cm2) of all the 8 parts?

The ratio 1 : 5 can be expressed in decimal as

If x2+ y2+ z2= xy + yz + zx, then what is the value of (7x + 3y – 5z)/5x?

The value of 2.33+0.0272.33-0.69+0.09

If x + y = 10 and xy = 4, then what is the value of x4 + y4?

The simplest form of 3774/2958 is

What should be the missing digit so that the number 347_547 becomes exactly divisible by 11?

The effective annual rate of interest corresponding to a nominal rate of 15% per annum payable half-yearly is