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Given that 1+2+3+4+ 10=55 , then the sum...

Given that `1+2+3+4+ 10=55 ,` then the sum `6+12+18+24+ .60` is equal to 300 (b) 330 (c) 455 (d) 655

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RS AGGARWAL-NUMBER SYSTEM-All Questions
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  2. The value of 5^2+6^2+ddot\ +10^2+20^2i s 755 (b) 760 (c) 765 (d) 7...

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  3. Given that 1+2+3+4+ 10=55 , then the sum 6+12+18+24+ .60 is equal to ...

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  4. If m and n are natural numbers such that 2^m-2^n=960 , what is the val...

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  9. The numbers 1,2,3,4,….. 1000 are multiplied together. The number of...

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  10. First 100 multiples of 10 i.e. 10, 20, 30, …. 1000 are multiplied t...

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  11. The number of zeros at the end of the product 5xx10xx\ 15xx\ 20xx\ 25x...

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  12. The number of zeros at the end of 60 ! is 12 (b) 14 (c) 16 (d) 18

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  13. The numbers 1, 3, 5,7, …. 99 and 128 are multiplied together. The n...

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  14. The numbers 2,4,6,8,….. 98, 100 are multiplied together. The number ...

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  15. Let S be set of prime numbers greater than or equal to 2 and less t...

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  16. Find the number of zeros at the end of the result 3xx6xx\ 9xx\ 12xx...

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  17. The units digit of 13^(2003) is (a) 1 (b) 3 (c) 7 (d) 9

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  18. The digit in the units place of the number 123^(99) is 1 (b) 4 (c) ...

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  19. Match list I with list II and select the correct answer: List I ...

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  20. The digit in the units place of the number (67)^(25)-1 must be 0 (...

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