A + B means A is the daughter of B;

A x B means A is the son of B and

A- B means A is the wife of B.

If T- S x B- M, which of the following is not true?

T-SÃ—B-M means T is the wife of S who is the son of B who is the wife of M i.e. T is the wife of the son of M ( father) i.e. T is the daughter in law of M.

But as this is not given in the choice, so the fact in (d) derived from S x B is true.

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

AZ, BY, CX, ?

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

The first two terms of a sequence are 1 and 2. Each of the following terms in the sequence is the sum of all the terms which come before it in the sequence. Which of these is not a term in the sequence?

The third term of the sequence is 1 + 2 = 3, the fourth term is 1 + 2 + 3 = 6, the fifth term is 1 + 2 + 3 + 6 = 12, and so on. So the sequence begins 1, 2, 3, 6, 12, 24, 48, 96 The trick is spotting that from the 4th term onwards each term is just double the previous term. Therefore 72 does not appear.

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