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The sum of first 50 odd natural numbers ...

The sum of first 50 odd natural numbers is

A

50

B

625

C

175

D

none of these

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The correct Answer is:
A
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QUANTUM CAT-NUMBER SYSTEM-QUESTION BANK
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  2. The sum of squares of first ten natural numbers is :

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  3. The sum of first 50 odd natural numbers is

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  4. A boy draws n squares with sides 1,2,3,4,5,…. In inches. The average a...

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  5. The 3rd and 6th term of an arithmetic progression are 4 and 9, respect...

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  6. If the 9th and 19th terms of a G.P. are 12 and 18, what is the G.M. of...

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  7. If the arithmetic mean of the numbers x1 , x2, x3,……., xn is barx, the...

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  8. Which one of the following numbers belongs to the given series 18, 26,...

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  9. When the natural numbers 1,2,3,……., 500 are written, then the digit 3 ...

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  10. In how many ways can 1146600 be written as the product of two factors?

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  11. How many natural numbers upto 990 are divisible by 5 & 9 both, but not...

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  12. The number of solution of |x| + |y| le 0, for (x , y) in R, is :

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  13. The remiander when 2^39 is divided by 39 is:

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  14. The unit digit of the following expression (1!)^99 + (2!)^98 + … (99!)...

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  15. The sum of all four digit numbers which are divisible by 7 is:

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  16. When the numerator of a positive fraction is incresed by 2 and the den...

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  17. In the given expression pq = p - q + 9, q is a fraction and p is any p...

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  18. The digit of a three digit numder are in G.P.When the digit of this nu...

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  19. How many even integers n, 13 le n le 313 are of the from 3k + 4, where...

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  20. How many even integers n, 13 le n le 313 are of the from 3k + 4, where...

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