A group of people can do a work in 24 days. However 5 of them was absent it took 30 days complete the work. How many people actually work to complete the work?

Let x workers required to complete the job.

As workers and days inversely proportional to each other.

So,

(x-5)/x=24/30

30x-150=24x

30x-24x=150

6x=150

x=150/6

x=25

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P is the Brother of R;

Q is the son of P ;

T is the brother of S;

S is the daughter of R.

Who are the cousins of Q?

Option (D)

T is the brother of S, who is the daughter of R. So, T and S are the children of R. Now, P is the brother of R and Q is the son of P. So, T and S are the cousins of Q.

The sum of Tina and Tuffy age is equals thrice their Mather's age. Tina is 2 years younger than Tuffy. If the age of mother is 42, find the difference between age of mother and elder child.

Taffy=x elder child

Tina =x-2 younger child

Given condition:

3(Tuffy+Tina)=Mother

3(x-2+x)=42

6x-6=42

6x=48

x=8

Tina =6

Tuffy=8

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

A, Z, X, B, V, T, C, R, ?, ?

The first, fourth and seventh letters are in alphabetical order. So, tenth letter would be the letter after C i.e. D. Also, the second and third letters are alternate and in reverse order and so are the fifth and sixth letters and the eighth and ninth letters.

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(I). A, B, C, D, E and F are six members of a family.

(II). One couple has parents and their children in the family.

(III). A is the son of C and E is the daughter of A.

(IV). D is the daughter of F who is the mother of E.

Who are the male members in the family?

Option (D)

E is the daughter of A and F is the mother of E. So, A is the father of E and hence the husband of F. Now, D is the daughter of F. So, D and E are the daughters of A and F. Also, A is the son of C. Now, only B remains. Thus, B and C are the parents of A. The sex of B and C cannot be determined.

In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. c _ baa _ aca _ cacab _ acac _ bca

The series is cab / aa / cacab / cacab / aa / cacab / ca. Thus, the pattern cacab, cacab, aa is repeated

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In following questions, three sequence of alphabets/numerals are provided which correspond to each other in some way. Find out alphabets/numerals that come in the blank places. Choose the correct option

C _ B _ D _ A _ B B D D 2 _ _ 4 _ 3 4 _ ? ? ? ? _ a _ c b a _ d _ _ _ _

C _ B _ D _ A _ B B D D 2 _ _ 4 _ 3 4 _ ? ? ? ? _ a _ c b a _ d _ _ _ _

Clearly, 2 corresponds to C and 4 corresponds to A.

So, 1 and 3 corresponds to B and D.

Thus, the missing sequence is 1, 1, 3, 3 or 3, 3, 1, 1..

The ages of two friends Julie is twice older than ketty. However if the age of Julie before 20 years that of ketty after 20 years then Ketty age is twice then Julie. What is age of Ketty?

let's Julie age = a ketty age = b

given that a + b = 2 / 1

a=2b,

a - 2b = 0.... Equation 1

and also given that (a - 20 )/ (b + 20) = 1/2

2a- 40 =b + 20

2 - 20 = 60....eauation 2

by solving both equation

B = 20

so, ketty is 20 years old.

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