Quantitative Aptitude - Arithmetic Ability Questions

The list price of an article is Rs. 900. It is available at two successive discounts of 20% and 10% . The selling price of the article is:

In the last financial year, a car company sold 41,800 cars . In this year, the target is to sell 51,300 cars . By what percent must the sale be increased ?

Find the mean proportional between 2 and 98?

What is the value of 2 - 2z + z22 + 2z - z2, when z+2z = 2 ?

Select the odd word/letters/number/number pair from the given alternatives.

Two chords AB and PQ of a circle intersect at D inside a circle. If AD = 4 cm, DB = 6 cm, QD = 3 cm, the length of PQ is equal to

A tank can be filled in 30 minutes. There is a leakage which can empty the tank in 90 minutes. Therefore, the tank will be filled in

The simple interest on a sum for 5 years is Rs 16800. The rate of interest for the first 3 years is 8% per annum and for the next 2 years is 12% per annum. What is the value (in Rs) of sum?