If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is:

Number System
If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is:

160

12

180

28

160

12

180

28

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Number System
Supply the missing figure : 1, 4, 9, 16, 25 .... 49

36

23

16

42

36

23

16

42

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Number System
If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number.

86

94

97

91

86

94

97

91

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Number System
A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13?

11

7

5

0

11

7

5

0

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

N2+ 1

N(N + 1)

N2

N(N – 1)

N2+ 1

N(N + 1)

N2

N(N – 1)

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Number System
On a new year eve, every student of a class sends a card to every other student. If the total number of cards delivered is 1980, how many students are there in the class ?

45

41

47

43

45

41

47

43

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Number System

Number System If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is:

Number System Supply the missing figure : 1, 4, 9, 16, 25 .... 49

Number System If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number.

Number System A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13?

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

Number System On a new year eve, every student of a class sends a card to every other student. If the total number of cards delivered is 1980, how many students are there in the class ?

Number System
If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is:

Number System
Supply the missing figure : 1, 4, 9, 16, 25 .... 49

Number System
If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number.

Number System
A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13?

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

Number System
On a new year eve, every student of a class sends a card to every other student. If the total number of cards delivered is 1980, how many students are there in the class ?