Quantitative Aptitude - Arithmetic Ability Questions

Simplify (b5x2a3z4)*(b3x2a4z5) / (a2b3z2)

The length of the base of an isosceles triangle is 2x­2y+4z, and its perimeter is 4x­2y+6z. Then the length of each of the equal sides is

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

If R019 is divisible by 11, find the value of the smallest natural number R?

A factory buys 10 machines. 2 Machine­A, 3 Machine­B and rest Machine­C. Prices of the machines are Rs 95000, Rs 60000 and Rs 50000 respectively. What is the average cost of these machines?

If the length of the shadow of a vertical pole be √3 times the height of the pole, the angle of elevation of the sun is:­

A solid sphere of diameter 17.5 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area?

If 2+x+2-x2+x-2-x=2,then the value of X is