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Find the sums given below : (i) 7+10 1/2...

Find the sums given below : (i) `7+10 1/2+14+dot\ dot\ dot+84`(ii) `34+32+30+dot\ dot\ dot+10`(iii) `5+(8)+(-11)+dot\ dot\ dot+( 230)`

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The correct Answer is:
`286`
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MBD -HARYANA BOARD-ARITHMETIC PROGRESSION-SHORT ANSWER TYPES QUESTIONS
  1. Find the sum of the first 40 positive integers divisible by 6.

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  2. Find the sum of the first 15 multiples of 8.

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  3. If the sum of first 7 terms of an A.P. is 49 and that of its 17 terms ...

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  4. If the sum of first 6 terms is 12 and sum of first 10 terms is 60, fin...

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  5. If the sum of first 6 terms of A.P.is 96 and sum of first 10 terms is ...

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  6. If the sum of first 10 terms of an A.P is 60 and sum of first 15 terms...

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  7. Cheack whether -150 is a term of the A.P. 11, 8, 5, 2,……..

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  8. Which term of the AP : 3, 8, 13, 18, . . . , is 78?

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  9. Find the sum of the first 12 terms of the A.P. -37, -33, -29…….. .

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  10. Find the sums given below : (i) 7+10 1/2+14+dot\ dot\ dot+84(ii) 34+32...

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  11. Find the sum : (-5)+(-8)+(-11) + …. + (-230)

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  12. Find the sum of first 22 terms of an A.P. in which d = 7 and 22 nd ter...

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  13. How many terms of the AP : 24, 21,18,... must be taken so that their s...

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  14. How many terms of the A.P. 9, 17, 25, …..must be taken to give a sum o...

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  15. How many three digit numbers are divisible by 7?

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  16. How many multiples of 4 lie between 10 and 250?

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  17. How many two -digit numbers are divisible by 3?

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  18. How many two digit numbers are divisible by 4?

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