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Simplify: a) 8888+888+88+8 (b) 715...

Simplify: a) `8888+888+88+8` (b) `715632-631104-9874-999`

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RS AGGARWAL-NUMBER SYSTEM-All Questions
  1. Simplify: a) 8888+888+88+8 (b) 715632-631104-9874-999

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  2. What value will replace the question mark in each of the following que...

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  3. What could be the maximum value of Q in the following equation? 5P9+3R...

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  4. Simplify: (i) 5793405 x 9999  (ii) 839478 x 625

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  5. Evaluate:  (i) 986 x 137 + 986 x 863      (ii) 983 x 207 – 983 x...

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  6. Simplify: (i) 1605 x 1605       (ii) 1398 x 1398

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  7. Evaluate: 475xx475\ +\ 125xx125\ \ \ \ \ 796xx796\ \ 204xx204

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  8. Simplify: (387xx387\ +\ 113xx113\ +\ 2xx387xx113) (87xx87\ +\ 61xx...

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  9. Find the square root of 4a^2+b^2+c^2+4a b-2b c-4a cdot

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  10. A is counting the numbers from 1 to 31 and B from 31 to 1. A is counti...

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  11. Simplify: (a) (789xx789xx789+211xx211xx211)/(789xx789-789xx211+211xx21...

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  12. Simplify: ((893+786)^2-\ (893-786)^2)/((893xx786))

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  13. Which of the following are prime numbers? 241       (ii)  337      ...

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  14. If Delta stands for the operation text('adding first number to twice t...

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  15. Given that 1^2+2^2+3^2+dot\ +10^2=385 ,\ then find the value of 2^2+4...

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  16. Which of the following numbers is divisible by 3? 541326           ...

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  17. What least value must be assigned to * so that the number 197*5462 ...

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  18. Which of the following numbers is divisible by 4? 67920594         ...

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  19. Which digits should come in place of ** and $ if the number 62684**$ i...

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  20. Show that 4832718 is divisible by 11.

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