A 5000 metre long train crosses a platform in 25 seconds while it crosses a single pole in 10 seconds. What is the length of the platform?

Speed=500/10

Speed=50m

Let the length of platform be x metres

Then,(x+500)/25=50

X+500=50*25

X+500=1250

X=1250-500

X=750

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IN a family ,there are six members A,B,C,D,E and F. A and B are a married couple , A being the male member. D is the only son of C , who is the brother of A. E is the sister of D. B is the sister in law of F, whose husband has died. Who is C to B?

A is a male and married to B . So, a is the husband and B is the wife . C is the brother of A . D is the son of C. E, who is the sister of D will be daughter of C. B is daughter of C . B is the daughter in law of F whose husband has died means F is the mother of A . C is the brother of A who is the husband of B. So, C is the brother in law of B..

Complete the Given Series

Which is the number that comes next in the sequence:

0, 6, 24, 60, 120, 210 ?

Which is the number that comes next in the sequence:

0, 6, 24, 60, 120, 210 ?

Clearly, the given series is 1

So, Next number = 7

Hence, the answer is (c)..

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 of six members naming P,Q,R,X,Y and Z. Q is the son of R but R is not the mother of Q. P and R are married couple. Y is the brother of R. X is the daughter of P. Z is the brother of P. Who is the brother in law of R.

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

In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative.

aa _ aaa _ aaaa _ aaaa _ b

The series is aab / aaab / aaaab / aaaaab. Thus, the number of a`s is increasing by one in the successive sequence.

There are 6 children playing football namely A, B, C, D, E and F. A and E are brothers. F is a sister of E. C is only son of A's uncle. B and D are the daughter of brother of C's father how many female players are there?

As given A and E are brothers. Hence, both are males . F is sister of E and hence female. C is son and hence male. B and D are daughters and hence female. Thurs, there are three females..

The average temperature on Wednesday, Thursday and Friday was 25. The average temperature on Thursday ,Friday and Saturday was 24. If the temperature on Saturday was 27, what was the temperature on Wednesday?

Total temperature on Wednesday, Thursday and Friday was 25 Ã— 3 = 75

Total temperature on Thursday ,Friday and Saturday was 24 Ã— 3 = 72

Hence, difference b/ w the temperature on Wednesday and Saturday = 3

If Saturday temperature = 27, then Wednesday temperature = 27 + 3 = 30

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

A, B, D, G, ?

The first, second, third,.... letters of the series are respectively moved one, two, three,... steps forward to obtain the successive terms..

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

b, e, d, f, ?, h, j, ?,

The series may be divided into groups as shown :

b e d / f i h / j m l

In each group, first letter is moved two steps forward to obtain the third letter while the third letter is moved one step forward to obtain the second letter

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