Look at this series: 31, 29, 24, 22, 17, . . .

What number should come next?

What number should come next?

This is a simple alternating subtraction series, which subtracts 2, then 5.

Rule = (first number - 2), (second number - 5), (third number - 2), (fourth number - 5)...

Now The series is 31, 29, 24, 22, 17, . . .

(31 - 2 = 29), (29 - 5 = 24), (24 - 2 = 22), (22 - 5 = 17), (17 - 2 = 15)...

So the answer is 15..

In following number series, either one term is missing or is incorrect.

Choose correct answer from options 1, 5, 14, 30, 55, 93

Choose correct answer from options 1, 5, 14, 30, 55, 93

The correct sequence is + 4, + 9, + 16, + 25, + 36 i.e. + 2

So, 93 is wrong and should be replaced by (55 + 36) i.e. 91..

The ratio of two brothers John and Harry is 4 / 5 . However if the age of John before 10 years and that of Harry after 10 years than the original ratio is reversed. What is the age of Harry?

let's John age =a and Harry age = b

Given that

a/ b =5 / 4

4 a=5 b

4a- 5b =0..... equation 1

and also given that

a - 10 / b + 10 =4 / 5

a5 - 50= 4b+40

5 a- 4b= 90 .......equation 2

By solving both equation

so, Harry is 40 years old.

E is
the son of A.

D is the son of B.

E is married to C.

C is B's daughter.

How is D related to E?

Option (D)

C is B's daughter and D is B's son. So, D is the brother of C.

E is a male married to C. So, E is the husband of C,

Whose brother is D. So, D is the brother-in-law of E.

.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 _ bc _ a _ bcda _ ccd _ bcd _

The series is aabcd / abbcd / abccd / abcdd.

Thus, a, b, c and d are repeated twice one by one.

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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. shg, rif, qje, pkd, ?

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

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A family consists of six 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 nurse, one housewife and two students in the family.What is the profession of P?

Option (B)

Q, the Doctor, is the father of T. S, the Housewife, 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 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.

The ratio of two brothers John and Harry is 4 / 5. However if the age of John before 10 years and that of Harry after 10 years then the original ratio is reversed. What is the age of John?

John age is = a and harry= b

given that a /b = 5 / 4

4a= 5 b

4a - 5b= 0.... Equation 1

and also given that a - 10 / b + 10 = 4 / 5

5 a- 50 = 4 b + 40

5a - 4 b = 90.... Equation 2

by solving both equation

a = 50

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