In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. a _ cdaab _ cc _ daa _ bbb _ ccddd

The series is abca / aabbccdd / aaabbbcccddd.

Thus, each letter of first sequence is repeated two times in the second sequence and three times in the third sequence.

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If the number 42573 * is exactly divisible by 72, then the minimum value of * is:

72 = 9 x8, where 9 and 8 are co-prime.

The minimum value of x for which 73x for which 73x is divisible by 8 is, x = 6.

Sum of digits in 425736 = (4 + 2 + 5 + 7 + 3 + 6) = 27, which is divisible by 9.

Required value of * is 6.

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There are 6 persons A B C D E and F. C is the sister of F.B is the brother of E' husband. D is the father of A and grandfather of F . There are two fathers three brothers and a mother in the group. Who is E' husband?

D is father of A and grandfather of F. So, A is father of F. Thus, D andbA are the two fathers. C is the sister of F. So, C is the daughter of A . Since there is only one mother, it is evident that E is the wife of A and hence the mother of C and C and F. So, B is brother of A. There are three brothers. So, F is the brother of C. Clearly, A is E's husband..

Salesman, engineer and accountant. There are two married couple in the family. D, the salesman is married to the lady teacher. The doctor is married to the lawyer. F, the accountant is the son of B and brother of E. C, The lawyer is the daughter in law of A. E is the unmarried engineer. A is the grandmother of F. How is D related to F?

C the daughter in law of A who is the Grand Mother of F Means C is the mother of F. But F is the son of . So, B is C's husband. But C, the lawyer, is married to the doctor. So, B is the doctor. F, the accountant, will be the song of B and C. E is the unmarried engineer. So the other married couples can be that of grandmother of F i .e. A and D. But D, the salesman is married to the lady teacher. So, D, the salesman, father of F, father of B and the husband of A, the lady teacher. D is grandfather of f..

A+B means A is the son of B;

A-B means A is the wife of B;

AxB means A us the brother of B;

AÃ·B means A is the mother of B; and

A=B means A is the sister of B.

What does P=RÃ·Q means?

P=RÃ·Q means P is the sister of R who is the mother of Q i.e. P is the aunt of Q..