Quantitative Aptitude - Arithmetic Ability Questions

Assuming that the numbers in each of the following figures follow a similar pattern, select the option that can replace the question mark (?) in figure C.

If A, B and C are denoting Mean, Median and Mode of a data and A : B = 9 : 8. Then the ratio of B : C is

If (x - 4) (x2 + 4x + 16) = x3 - P, then P is equal to

The ratio of present ages of Ramya and Saurabh is 8:7. After 10 years the ratio of their ages will be 12:11. What is Ramya's present age?

The reciprocal of the sum of the reciprocals of 2/9 and 7/10 is

O is the orthocentre of∆ABC, and if ∠BOC = 110° then ∠BAC will be

The value of x for which the expressions 7x + 13 and 13x - 7 become equal is _____