What number should come in the place of (?) in the following number series ? 1, 4, 9, 25, 49, ?, 169, 289, 361

Number System
What number should come in the place of (?) in the following number series ? 1, 4, 9, 25, 49, ?, 169, 289, 361

321

121

11

225

321

121

11

225

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Number System
In each of the following numbers, what should be the missing digit in the indicated place such that the number is a multiple of 11?

8

3

2

5

8

3

2

5

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Number System
Which one of the following represents the sum of the first n even numbers?

N2

N(N – 1)

N(N + 1)

N2+ 1

N2

N(N – 1)

N(N + 1)

N2+ 1

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Number System
If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ?

82

83

81

84

82

83

81

84

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Number System
√343 = ?

19

21

18

20

19

21

18

20

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Number System
The sum of the digits of a two-digit number is 12, and the difference between the number and the number obtained by interchanging the two digits of the number is 18. Find the number.

12.5

50

75

25

12.5

50

75

25

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Number System

Number System What number should come in the place of (?) in the following number series ? 1, 4, 9, 25, 49, ?, 169, 289, 361

Number System In each of the following numbers, what should be the missing digit in the indicated place such that the number is a multiple of 11?

Number System Which one of the following represents the sum of the first n even numbers?

Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ?

Number System √343 = ?

Number System The sum of the digits of a two-digit number is 12, and the difference between the number and the number obtained by interchanging the two digits of the number is 18. Find the number.

Number System
What number should come in the place of (?) in the following number series ? 1, 4, 9, 25, 49, ?, 169, 289, 361

Number System
In each of the following numbers, what should be the missing digit in the indicated place such that the number is a multiple of 11?

Number System
Which one of the following represents the sum of the first n even numbers?

Number System
If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ?

Number System
√343 = ?

Number System
The sum of the digits of a two-digit number is 12, and the difference between the number and the number obtained by interchanging the two digits of the number is 18. Find the number.