What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ?

Number System
What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ?

7878

4545

5656

3434

7878

4545

5656

3434

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Number System
What is the difference between the local value of 7 and 5 in the number 2574?

430

403

413

570

430

403

413

570

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Number System
The sum of the two digits of a two-digit number is 15 and the difference between the two digits of the two digit number is 3. What is the product of the two digits of the two digit number ?

36

54

None of these

14

36

54

None of these

14

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Number System
Complete the series : 81, 69, 58, 48, 39 ........

29

30

31

28

29

30

31

28

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Number System
Two-third of a positive number and 25/216 of its reciprocal are equal. The number is:

144/25

12/5

5/12

25/144

144/25

12/5

5/12

25/144

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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 ?

43

41

45

47

43

41

45

47

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Number System

Number System What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ?

Number System What is the difference between the local value of 7 and 5 in the number 2574?

Number System The sum of the two digits of a two-digit number is 15 and the difference between the two digits of the two digit number is 3. What is the product of the two digits of the two digit number ?

Number System Complete the series : 81, 69, 58, 48, 39 ........

Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is:

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
What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ?

Number System
What is the difference between the local value of 7 and 5 in the number 2574?

Number System
The sum of the two digits of a two-digit number is 15 and the difference between the two digits of the two digit number is 3. What is the product of the two digits of the two digit number ?

Number System
Complete the series : 81, 69, 58, 48, 39 ........

Number System
Two-third of a positive number and 25/216 of its reciprocal are equal. The number is:

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 ?