Quantitative Aptitude - Arithmetic Ability Questions

20 pens and 46 pencils were purchased for Rs. 235. If the average price of a pencil is Rs. 2.50 then calculate the average price (in Rs.) of a pen.

The maximum value of 5+20x-4x2, when X is real number

The base of a parallelogram is twice its height. If the area of the parallelogram is 338 sq.cm. Find its height?

How many numbers are there between 1 to 200 which are divisible by 3 but not by 7?

What is the third proportional to 9 and 45?

If Giridhar's salary is 5/3 times of Hariraj's and Shaunak's is 2/3 times of Hariraj's, what is the ratio of Giridhar's salary to Shaunak's.

If x3+ 2x2– 5x + k is divisible by x + 1, then what is the value of k?

If x + (1/x) = 2, then what is the value of x21 + (1/x1331)?