The sum of four numbers in A.P. is 28 an...

The sum of four numbers in A.P. is 28 and the sum of their squares is 216. Find the number's.

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ICSE-SEQUENCE AND SERIES -CHAPTER TEST

The sum of four numbers in A.P. is 28 and the sum of their squares is ...
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Write down the first five terms of the sequence, whose nth term is (-1...
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If the 3rd and the 6th terms of an A.P. are 7 and 13 respectively, fin...
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Find the sum of all natural numbers between 100 and 1000 which are mul...
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How many terms of the A.P., -6,(-11)/(2),-5 ... are needed to give the...
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Determine the sum of the first 35 terms of an A.P. if a(2), = 2 and a(...
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If the first term of an A.P. is 2 and the sum of first five terms is e...
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Insert 3 arithmetic means between 2 and 10.
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Find 12th term of a G.P. whose 8th term is 192 and the common ratio is...
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The first term of a G.P. is 1. The sum of the third and fifth terms is...
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The sum of first three terms of a G.P. is (39)/(10) and their product ...
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The sum of some terms of a G.P. is 315 whose first term and the common...
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Find the sum of the series 0.6 +0.66 +0.666+ ... to the n terms
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The sum of an infinite series is 15 and the sum of the squares of thes...
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Insert three geometric means between 1 and 256.
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In the sum to infinity of the series 3+(3+x) (1)/(4) + (3+2x)(1)/(4^(2...
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Find the sum to n terms of the series 3.8 +6.11 +9.14 + ...
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Find the sum 5^(2)+ 6^(2) + 7^(2) + ... + 20^(2).
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If in a geometric progression consisting of positive terms, each term ...
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If the first term of an infinite G.P. is 1 and each term is twice the ...
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If fifth term of a G.P. is 2, then the product of its first 9 terms is
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