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If the sum of n terms of two A.P.s are i...

If the sum of n terms of two A.P.s are in the ratio 7n + 1 : 4n + 27. Find the ratio of their `11^(th)` terms.

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MBD-ARITHMETIC PROGRESSION-EXERCISE
  1. The sum of n terms of an A.P. whose first term is 5 and common differe...

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  2. How many numbers between 10 and 200 are exactly divisible by 7 ? Find ...

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  3. If the sum of n terms of two A.P.s are in the ratio 7n + 1 : 4n + 27. ...

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  4. A man borrows $ 1,000 and agrees to repay with a total interest of $ 1...

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  5. The rate at which monthly salary of a person increases annually is in ...

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  6. Aman arranges to pay a debt of $90000 in 40 monthly instalments which ...

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  7. A sum of $1000 is invested at 8% simple interest per annum. Calculate ...

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  8. Find the sum of all even integers between 101 and 999.

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  9. After being set up, a company manufactured 6000 scooters in the 3rd ye...

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  10. After being set up, a company manufactured 6000 scooters in the 3rd ye...

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  11. After being set up, a company manufactured 6000 scooters in the 3rd ye...

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  12. Find the sum of the series : 3+6+9+12……………… to 40 terms .

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  13. Find the sum of the series : 4+2+0-2-4………. To 20 terms.

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  14. Find the sum of the series : 1+2/3+1/3+0+…….. To 19 terms.

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  15. Sum up the following series :- 101 + 99 + 97 +………+47 .

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  16. Sum up the following series :- 7 + 12+ 17 + ……+77.

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  17. Sum up the following series :- -15-11-7 .......+17.

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  18. Sum up the following series :- 21 + 18 + 15 + ……. -9 -12.

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  19. Find the sum of an A.P. of :- 26 terms whose nth term is 2n + 5.

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  20. Find the sum of an A.P. of :- 26 terms whose nth term is (2n + 1)/3 .

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