A + B means A is the father of B.

A -B means A is the wife of B.

A x B means A is the brother of B .

A Ã· B means A is the daughter of B.

If P + Q which of the following is true?

P + RÃ·Q means P is the father of R who is the daughter of Q i.e P is the father of R and Q is the mother of it is the husband of Q..

In following alphabet series , one term missing as shown by question mark . Choose missing term from options.

Z, Y, X, U, T, S, P, O, N, K, ?, ?

The given series consists of three consecutive letters from the end, then two letters skipped, then again three consecutive letters from the end so on..

A family consists of six member's P, Q, R, S, T and U. There are two married couples. Q is a doctor and the father of T. U is grandfather of R and is a contractor. S is grandmother of T and is a housewife. There is one doctor, one contractor, one nurse, one housewife and two students in the family. What is the profession of P?

Q, the doctor,is the father of T. S, the housewife, is the grandmother of T and hence the mother of W. Since there are only two married couples one being that of Q, the grandfather of R i.e. U must be married of S. Thus, R and T will be both children of Q and these must be the students. So, P, who remains, shall be the wife of Q and she alone can be the nurse. Thus, U must be the contractor. P is the nurse..

All the six members of a family A, B, C, D, E and F are travelling together. B is the son of C but C is not the mother of B, A and C are a married couple. E is the brother of C. D is the daughter of A. F is the brother of B. Which of the following is a pair of females?

Option (D)

B is the son of C but C is not the mother of B means C is the father of B. A is married to C means A is the mother of B. F is brother of B means F is son of A and C. D is daughter of A means D is daughter A and C. Clearly, the females are only the mother A and the daughter D.

In following alphabet series , one term missing as shown by question mark . Choose missing term from options.

AZ, CX, FU, ?

The first letter of the first, second, third, .... terms are respectively moved two, three, four, ... steps forward to obtain the first letter of the successive term. The second letter of the first, second, third.... terms are respectively moved two, three, four, ... steps backward to obtain the second letter of the successive terms.

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In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options. C4X, F9U, 116R, ?

The first letter of each term is moved three steps forward and the last letter is moved three steps backward to obtain the corresponding letters of the next term.

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Two trains starting at the same time from two station 200 km apart and going in opposite directions cross each other at a distance of 110 km from one of the stations. What is the ratio of their speeds?

In the same day they cover 110 km and 90 km respectively.

For the same time speed and distance is inversely proportional.

Show the ratio of their speed=110:90=11:9.

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