The sum of the first 20 even natural num...

The sum of the first 20 even natural numbers is

5050

505

420

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VGS PUBLICATION-BRILLIANT-PROGRESSIONS-EXERCISE

The nth term if a GP = a(n) = ar^(n-1) here 'r' means ........
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if a, b,c are in A.P. then b =
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The sum of the first 20 even natural numbers is
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How many terms of A.P. -6, (-11)/2 , -5 …… are needed to obtain a sum ...
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The sum of natural numbers from 1 to 100 is
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The sum of first 50 even numbers is
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The sum of first 20 odd numbers is
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If x-1, x+3, 3x-1 are in A.P., then x is equal
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The numbers -15, -11,-7,-3, is …………is
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The next term of the A.P. sqrt(48), sqrt(75),sqrt(108), sqrt(147), …...
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Which term of the Arithmetic Progression 24, 21, 18, ……. Is the first ...
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Which term of the A.P. 125, 120, 115, ……….. Is the first negative?
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Which term of the A.P 100 , 90, 80, ……….. Is zero?
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(a+3d), (a+d), (a-d), ………… the next term of the A.P. is
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The sum of 15 terms of the A.P. 4, 7, 10, ………. Is
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If a(7) - a(3) = 32, then the common difference of the A.P. is
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a(28)-a(23) = 15, then the common difference of the A.P. is
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If a,b,c are in AP then b-a = …………..
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The 17^(th) term of 1.1, 2.2, 3.3, 4.4, ………….. Is
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The 25^(th) term of -300, -290, -280,………. is
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