NA 147 : 741 253 : 352 518 : 816 303 : 303 Second number is the reverse of the f

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Question
NA
Options
A. 147 : 741
B. 253 : 352
C. 518 : 816
D. 303 : 303

Correct Answer

518 : 816

Explanation

Second number is the reverse of the first number.

Classification problems

Search Results

1.
NA
Options
A. 5 : 9
B. 7 : 11
C. 13 : 17
D. 29 :31

Discuss

Correct Answer: 5 : 9

Explanation:

Second number is the next prime number to the first number.

2.
NA
Options
A. 1 : 4
B. 10 : 24
C. 8 : 18
D. 22 : 46

Discuss

Correct Answer: 10 : 24

Explanation:

In all others, 2nd number = (2 x 1 st number) + 2

3.
NA
Options
A. 5-2
B. 19-16
C. 27-23
D. 31-28

Discuss

Correct Answer: 27-23

Explanation:

5-2 = 3, 19-16 = 3, 27-23 = 4, 31-23 = 3

4.
NA
Options
A. 18, 45
B. 23,14
C. 29, 82
D. 36, 27

Discuss

Correct Answer: 29, 82

Explanation:

In all other pairs, the difference between the two numbers is a multiple of 9.

5.
NA
Options
A. 23-29
B. 19-25
C. 13-17
D. 3-5

Discuss

Correct Answer: 19-25

Explanation:

All other pairs consists of prime number only.

6.
NA
Options
A. 22 : 44
B. 45 : 1625
C. 18 : 164
D. 24 : 464

Discuss

Correct Answer: 24 : 464

Explanation:

Each digit of second number is the square of the respective digit of the first number.

7.
NA
Options
A. 22 : 0
B. 24 : 12
C. 23 : 5
D. 24 :18

Discuss

Correct Answer: 24 :18

Explanation:

Second number is the difference of the square of the digits of the first number.

8.
NA
Options
A. 25, 36
B. 9, 64
C. 100, 121
D. 144, 169

Discuss

Correct Answer: 9, 64

Explanation:

Except '9, 64', all number are consecutive squares.

9.
NA
Options
A. 919, 949
B. 646, 686
C. 828, 848
D. 434, 464

Discuss

Correct Answer: 919, 949

Explanation:

In all the given numbers, the middle digit is twice in second group.

10.
NA
Options
A. 83-75
B. 58-50
C. 49-42
D. 25-17

Discuss

Correct Answer: 49-42

Explanation:

Only option (c) has difference if 7, rest have difference of 8 between first and second number.

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