Verbal Reasoning - Mental Ability Questions

O and O' are the center of the two circles with radii 7cm and 9cm respectively. The distance between the centers is 20cm. If PQ be the transverse common tangent to the circles, which cuts OO' at X, what is the length of O'X in cm ?

In a certain code language, "who are you" is written as "432", "they is you" is written as "485" and "they are dangerous" is written as "295". How is "dangerous" written in that code language?

If 60#40 = 10, 40#20 = 6 and 60#90 = 15, then find the value of 40#30 = ?

B3D means B is the father of D.
B7D means B is the sister of D.
B2D means B is the brother of D.
B1D means B is the wife of D.

Which of the following means F is the mother of K?

Arrange the given words in the sequence in which they occur in the dictionary.

i. Speaker
ii. Surreptitious
iii. Spontaneous
iv. Spurious

Find the missing number in the following series:

43, 172, 86, 344, ?

Arrange the given words in the sequence in which they occur in the dictionary.

1. Pragmatic
2. Protect
3. Pastel
4. Postal
5. Pebble

Choose apropriate words which gives a complete meaning to the sentence from the given options.

we were thinking ______ it _______ something like a requiem for our age.