Mathematical and Logical Reasoning Test 56

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Mathematical and Logical Reasoning Test 56

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Weekly Quiz Competition

Question 1
1 / -0

1, 2, 3, 10, ?, 9802

A
99

B
199

C
299

D
999

Solution

$$2=1^2+1; 3=2^2-1; 10=3^2+1$$
$$\therefore ? = 10^2-1=99$$
Question 2
1 / -0

Choose the missing terms out of the given alternatives Z, S, W, O, T, K, Q, G, ?, ?

A
N, D

B
N, C

C
O, D

D
O, C

Solution

The given sequence a combination of two series:
I)Z, W, T, Q, ? and II)S, O, K, G, ?
The pattern I is
Z - 3 = W
W - 3 = T
T - 3 = Q
Q - 3 = N

The pattern in II is
S - 4 = O
O - 4 = K
K - 4 = G
G - 4 = C
Question 3
1 / -0

Find out the wrong term in the series 2, 3, 4, 4, 6, 8, 9, 12, 16

A
9

B
12

C
16

D
8

Solution

The given sequence is a combination of three series:
i)1st, 4th, 7th terms i.e, 2, 4, 9
ii)2nd, 5th, 8th terms i.e, 3, 6, 12
iii)3rd, 6th, 9th terms i.e, 4, 8, 16
In each one of i, ii, iii, each term is twice the preceding term.
So, 9 is wrong and must be replaced by $$(4\times 2) = 8$$
Question 4
1 / -0

Introducing a man, a woman said, 'He is the only son of my mother's mother." How is the woman related to the man ?

A
Mother

B
Aunt

C
Sister

D
Niece

Solution

My mother's mother is my grandmother: My grandmother's only son is my maternal uncle. So, the woman is man's niece.
Question 5
1 / -0

Pointing to a girl in the photograph, Amar said, "Her mother's brother is the only son of my mother's father." How is the girl's mother related to Amar ?

A
Mother

B
Sister

C
Aunt

D
Grandmother

Solution

Only son of Amar's mother's father is Amar's maternal uncle. So, the girl's maternal uncle is Amar's maternal uncle. Thus, the girl's mother is Amar's aunt.
Question 6
1 / -0

Find out the wrong term in the series 380, 188, 92, 48, 20, 8, 2

A
20

B
48

C
92

D
2

Solution

The correct pattern is -192, -96, -48, -24, -12, -6
So, 48 is wrong and must be replaced by (92 - 48) = 44
Question 7
1 / -0

Find the wrong number in the following series?
1500, 1475, 1448, 1419, 1389, 1355, 1320

A
1475

B
1419

C
1389

D
1355

Solution

$$1500 - 25 \Rightarrow 1475$$
$$1475 - 27 \Rightarrow 1448$$
$$1448 - 29 \Rightarrow 1419$$
$$1419 - 31 \Rightarrow 1388$$
$$1388 - 33 \Rightarrow 1355$$
$$1355 - 35 \Rightarrow 1320$$
1389 is wrong one. It should be 1388.
Question 8
1 / -0

Find the wrong number in the series.
1, 2, 6, 15, 31, 56, 91

A
31

B
15

C
56

D
91

Solution

The difference of the two consecutive numbers are 1, 4, 9, 16, 25, 35.
This is clearly , $$+1^2, +2^2, +3^2, +4^2, +5^2, +6^2$$
Here 35 is wrong, So our wrong number is 91
Question 9
1 / -0

Find out the wrong term in the series 83,92,85,90,85,88

A
85

B
88

C
90

D
92

Solution

The correct pattern is +9,-7,+5,-3,+1
So,85 is wrong term and must be replaced by 90-3=87
Question 10
1 / -0

Find out the wrong term in the series 169,144,121,100,85,64

A
144

B
100

C
85

D
64

Solution

The sequence is $$13\times 13,12\times 12,11\times 11,10\times 10,9\times 9,8\times 8, . . . . . .$$
So, 85 is wrong term and must be replaced by $$9\times 81$$

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Re-Attempt Weekly Quiz Competition

Mathematical and Logical Reasoning Test 56

Result

Mathematical and Logical Reasoning Test 56

Score

-

Rank

-

SHARING IS CARING

Question 1

99

199

299

999

Solution

Question 2

N, D

N, C

O, D

O, C

Solution

Question 3

9

12

16

8

Solution

Question 4

Mother

Aunt

Sister

Niece

Solution

Question 5

Mother

Sister

Aunt

Grandmother

Solution

Question 6

20

48

92

2

Solution

Question 7

1475

1419

1389

1355

Solution

Question 8

31

15

56

91

Solution

Question 9

85

88

90

92

Solution

Question 10

144

100

85

64

Solution

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Question Analysis

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Score

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Rank

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