Quantitative Aptitude - Arithmetic Ability Questions

Determine the value of z in the equation: z = 20+20+20+20+...∞

The simplest form of 3774/2958 is

If (8x ­- 4) = (3x + 6), then the numerical value of (x + 1)3 is

P and Q can do a project in 12 and 12 days respectively. In how many days can they complete 50% of the project if they work together?

A can do a work in 15 days and B in 20 days. If they work on it together for 5 days, then what fraction of work is left?

A moving train passes a platform 50m long in 14 seconds and a lamp post in 10 seconds. The speed of the train (in km/h) is :

What is the value of 513-144 - 81 - 64 ?

In each of the following questions, a question is followed by information given in them Statements I, II and III. You have to study the question along with the statements and decide the information given in which or the statements/ is necessary to answer the question. 

What is the cost of flooring the rectangular hall?

I. Length and the breadth of the hall are in the ratio of 3:2

II. Length of the hall is 48 m and cost of flooring is ₹ 850 Per sq.m.

III. Perimeter of the hall is 160 m and cost of flooring is ₹ 850 per sq m