Quantitative Aptitude - Arithmetic Ability Questions

Raghavendra sells a machine for Rs 43 lakhs at a loss. Had he sold it for Rs 52 lakh, his gain would have been 5 times the former loss. Find the cost price of the machine.

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.

If x + [1/(x + 7)] = 0, then what is the value of x – [1/(x + 7)]?

Two men are on opposite sides of a tower. They measure the angles of elevation of the top of the tower as 30 ̊ and 45 ̊ respectively. If the height of the tower is 50 m, the distance between the two men is (Take √3 = 1.73)

The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?

If x = 313- 3-13, then 3x2 + 9xis equal to

What is the value of (3/5 + 7/9)?