Quantitative Aptitude - Arithmetic Ability Questions

If (1 -­ cosA)/(1 + cosA) = x, then the value of x is

The price of a Television is Rs.14000 inclusive of VAT. If the rate of VAT is 12%, find the basic price of the Television.

5% more is gained by selling a watch for Rs. 350 than by selling it for Rs. 340. The cost price of the watch is

If the time increases by 5 years, then simple interest increases by Rs 3000 on a sum of Rs 5000. What is the rate (in percentage) of interest per annum?

The mode of the data 12, 1, 10, 1, 9, 3, 4, 9, 7, 9 is

The average height of 50 bats is 126 cm. Some bats of average height 120 cm are removed. If the new average height is 130 cm, then how many bats are remaining?

In the following question, select the missing number from the given series.
 
1912, 2012, 2133, 2277, 2446, ?

Vishal is 20 years younger to Arya. Twelve years hence Arya's age will be 1.25 times that of Vishal. Aryais now ......... years old.