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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In my row in the theatre the seats are numbered consecutively from T1 to T50. I am sitting in seat T17 and you are sitting in seat T39. How many seats are there between us?

The seats between us are numbered from T18 up to T38. So the seats between us are the 38 seats from T1 up to T38, other than the 17 seats from T1 up to T17. So there are 38 âˆ’ 17 = 21 seats.

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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. A, CD, GHI, ?, UVWXY

The number of letters in the terms goes on increasing by one at each step. Also, there is a gap of one letter between the last letter of the first term and first letter of the second term and a gap of two letters between the last letter of the second term and first letter of the third term. So, the first letter of the required term would be four steps ahead of the last letter of the third term.

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A family consists of 6 members 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 house wife and two students in the family.

Which of the following is definitely a group of male members?

Q the doctor, is the father of T. S, the house wife, is the grandmother of T and hence the mother of Q. Since there are only two married couples one being that of Q, the grandfather of R i. e, U must be married to S. Thus, R and T will be both children of Q and these must be the student. So P, who remains, Shell be the wife of Q and she alone can be the nurse. Thus, U must be the contractor. Clearly, for definite the males are Q, the father and U, the grandfather..

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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A family consists of 6 member P, Q, R, X, Y and Z . Q is a son of R but R is not mother of Q. P and R a married couple. Y is the brother of R. X is a daughter of P. Z is a brother of P. Who is the brother in law of P?

Q is son of R but R is not a mother. So, R is the father of Q. P is married to R. So, P is the wife of R and the mother of Q . X is a daughter of P and hence, of R and so she is a sister of Q. Y is a brother of R and Z is a brother of P. R is husband of P and Z brother of P.

R is the husband of P and Z is a brother of P. R is husband of P and Y is brother of R so, Y is brother in law of P.

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