Mathematical and Logical Reasoning Test 80

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Mathematical and Logical Reasoning Test 80

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Weekly Quiz Competition

Question 1
1 / -0

In the following questions one number is wrong in the series Find out the wrong number in each case
2, 6, 15, 40, 89, 200

A
2

B
6

C
200

D
89

Solution

The differences are the squares of prime numbers i.e. $$\displaystyle 2^{2},3^{2},5^{2},7^{2},11^{2}$$ ect i.e. 4, 9, 25, 49, 121 etc.
Ans (C)
Question 2
1 / -0

Latha has the same number of sisters as she has brothers. Her brother Shyam has twice as many sisters as he has brothers. How many children do their parents have?

A
7

B
6

C
5

D
8

Solution

$$\\ Let\quad the\quad number\quad of\quad children\quad be\quad 2x+1\\ Excluding\quad Latha,\quad there\quad are\quad 2x\quad children\quad who\quad are\quad equal\quad boys\quad and\quad girls.\quad Therefore,\quad x\quad each.\\ Total\quad boys\quad =x\\ Total\quad girls\quad (inclusing\quad Latha)=x+1\\ No.\quad of\quad brothers\quad of\quad Shyam=x-1\\ No.\quad of\quad sisters\quad of\quad Shyam=x+1\\ x+1=2(x-1)\\ x=3\\ Total\quad children=\quad 2x+1=7\\ $$
Question 3
1 / -0

Pointing to a man in a photograph, a woman said, 'His brother's father is the only son of my grandfather'. How is the woman related to the man in the photograph?

A
Aunt

B
Daughter

C
Grandmother

D
Mother

E
Sister

Solution

Let us presume the name of the woman showing the photograph as X and the name of the man in the photograph as Y.
Y's brother's father means Y's father and he is the only son of X's grandfather. This clearly indicates that Y's father and X's father is one.
So, X is Y's sister.
Question 4
1 / -0

What will my brother's daughter's paternal grandfather's wife be to me?

A
Aunt

B
Sister

C
Mother

D
Niece

E
None of these

Solution

My brother's daughter's means my niece.
Now, my niece paternal grandfather's wife means her grandmother or my mother.
Hence, option (C) is the correct answer.
Question 5
1 / -0

P Y X F : ? : U D S K

A
Q Y V F ; S C U J

B
O X E Y ; V E L R

C
O X Y E L; V E R L

D
Q X W G ; T C T J

Solution

In this problem two term (one on the LHS and the other on the RHS ) are missing in Let us consider the first option Then the analogy appears as under
P Y X F : Q Y V F = S C U J : U D S K
Here notice that the last letter of the first and second terms on the LHS is same whereas the terms on the RHS do not follow this pattern Further no other common pattern in noticed so this option
does not hold good
Now let us consider the second option On replacing the '?" mark with the terms given in option (2) the analogy appears as under
P Y X F : O X E Y = V E L R : U D S K
we observe that the second and third letters of the first term on the LHS have occupied fourth and second postions in the second term on the LHS but this pattern is not followed by the terms on the RHS Futher no other common patter is notices so that option is also correct
Now let us consider the third option on replacing the "?" mark with the terms given in option (3) the analogy appears as under
P Y X F : O X Y E = V E R L : U D Z K
here consider the first and second terms on the LHS we find that P and O are consecutive letter in the reverse order Y and X are also consecutive letter in the reverse order X and Y are consecutive letter in the right order F and E are again consecutive letter in the reverse order we have a pattern here the same pattern is followed by the term on the RHS also so this is the correct option
Question 6
1 / -0

Pointing to a photograph Vikas said "She is the daughter of my grand father's only son'' How is the person in the photograph related to vikas ?

A
Father

B
Brother

C
Sister

D
Mother

Solution

$$\displaystyle \Rightarrow $$ Only son of grandather means father of Vikas Therefore girl in the photograph is sister of Vikas so, the answer is (3)
Question 7
1 / -0

Directions For Questions

In the following questions find the related letters to complete the analogy.

...view full instructions

ADHM : ZWSN :: CFJO : ?

A
YVRM

B
WTPK

C
XMTP

D
ZXVT

Solution
Question 8
1 / -0

In certain code, P O E T R Y is coded as R E P O T Y then what is the code of the word A U T H O R ?

A
O H U A T R

B
O T A U H R

C
R H U A T O

D
U A H T R O

E
NONE

Solution

In this example the letters of the word at the odd-numbered positions i.e., 53 and 1 are written in the positions 1, 2 and 3 in the code, and the letters of the word at the even- numbered positions i.e., 2, 4 are 6 are written the positions 4, 5 and 6 in the code By applying the same technique we obtain the code o the word AUTHOR AS OTAUHAR hence the answer is OTAUHR
Question 9
1 / -0

P R L N : X Z T V = J L J H : ?

A
TNPR

B
RTTN

C
RTPS

D
RTNP

Solution

Here in the first term on the LHS the letters in positions 3, 4, 1 and 2 are alternate letter The second term on the LHS also follows the same pattern Further, the second letter of the first term and the third letter of the second term also alternate letters
It is observed that the first term on the RHS also follows the above pattern
Only the letter in option 4 follow this pattern Further the second letter L of the first the term on the RHS and the third letter of option (4) i.e., 'N' are alternate letter Hence the answer is R T N P
Question 10
1 / -0

If S T U D I O is coded as O I D U T S then how do we code the word C A M E R A ?

A
A R A C A M

B
M A C A R E

C
E M C A A R

D
A R E M A C

E
NONE

Solution

we notice that the word S T U D I O is written in the reverse order the answer is A R E M A C

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Re-Attempt Weekly Quiz Competition

Mathematical and Logical Reasoning Test 80

Result

Mathematical and Logical Reasoning Test 80

Score

-

Rank

-

SHARING IS CARING

Question 1

2

6

200

89

Solution

Question 2

7

6

5

8

Solution

Question 3

Aunt

Daughter

Grandmother

Mother

Sister

Solution

Question 4

Aunt

Sister

Mother

Niece

None of these

Solution

Question 5

Q Y V F ; S C U J

O X E Y ; V E L R

O X Y E L; V E R L

Q X W G ; T C T J

Solution

Question 6

Father

Brother

Sister

Mother

Solution

Question 7

YVRM

WTPK

XMTP

ZXVT

Solution

Question 8

O H U A T R

O T A U H R

R H U A T O

U A H T R O

NONE

Solution

Question 9

TNPR

RTTN

RTPS

RTNP

Solution

Question 10

A R A C A M

M A C A R E

E M C A A R

A R E M A C

NONE

Solution

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