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C takes the value 0        (c)  2    ...

C takes the value 0        (c)  2        (d)  2 or 3     (d)  5

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RS AGGARWAL-NUMBER SYSTEM-All Questions
  1. In the following sum, ? stand for which digit? ?+1?+2?+?3+?1=21 ? ...

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  2. B takes the value 0      (b)  5       (c) 9    (d)   0 or 9

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  3. C takes the value 0        (c)  2        (d)  2 or 3     (d)  5

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  4. A 3-digit number 4a3 is added to another 3-digit number 984 to give th...

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  5. If (FIGURE), the values of a and b are 1,2      (b)  2,3       (c)...

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  6. Figure   In the above multiplication problem, * is equal to 1    ...

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  7. If * means adding 6 times the second number to the first number, th...

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  8. If 1xx2xx3xx...xxn is denoted by lfloorn , then lfloor8-lfloor7-lfloo...

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  9. The highest power of 9 dividing 99! completely is 11      (b)  ...

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  10. For an integer n ,\ n !=(n-1)(n-2) .3.2.1.\ Then, 1!+2!+3!+ 100 ! w...

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  11. The number of prime factors in the expression 6^(10). 7^(17)\ 11^(27) ...

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  12. What is the number of prime factors contained in the product 30^7xx...

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  13. What number multiplied by 48 will give the same product as 173 mult...

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  14. A positive number, which when added to 1000, gives a sum which is g...

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  15. 7 is added to a certain number the sum is multiplied by 5; the prod...

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  16. Symbiosis runs a corporate training programme. At the end of runnin...

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  17. The sum of four consecutive even numbers A,B,C and D is 180. What i...

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  18. A young girl counted in the following way on the fingers of her lef...

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  19. Given n=1+x and x is product of four consecutive integers. Then which ...

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  20. If x+y=15\ a n d\ x y=56 , then what is the value of x^2+y^2? (a) 110...

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