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- If the sum of three number in A.P. is 24 and their product is 440 ,fin...
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- If S1,S2 and S3 are respectively the sums of n, 2n and 3n terms of an ...
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- Find the sum of multiple of 7 between 200 and 400.
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- Find the sum of integers from 1 to 100 that are divisible by 2 or 5
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- Find the sum of all two digit numbers which when divided by 4, yields ...
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- If f is a function satisfying f(x+y)=f(x)f(y) for all x,yinN such that...
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- The sum of some terms of a GP is 315 whose first term and the common r...
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- The first term of a G.P. is 1. The sum of the third term and fifth ter...
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- The sum of three numbers in G.P. is 56. If we subtract 1,7,21 from the...
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- A G.P. consists of an even number of terms. If the sum of all the term...
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- The sum of the first 4 terms of an A.P. is 56. The sum of the last 4 t...
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- If (a+bx)/(a-bx)=(b+cx)/(b-cx)=(c+dx)/(c-dx)(xne0) then show that a,b,...
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- Let S be the sum P the product and R the sum of reciprocals of n terms...
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- The p^(th),q^(th)and r^(th) terms of an A.P. are a,b,c respectively. S...
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- If a (1/b+1/c),b(1/c+1/a),c(1/a+1/b) are in A.P. prove that a,b,c are ...
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- If a,b,c,d are in G.P. prove that (a^n+b^n),(b^n+c^n),(c^n+d^n) are in...
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- If a and b are the roots of x^2-3x+p=0 and c,d are the roots of x^2-12...
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- If a,b,c are in A.P. b,c,d are in G.P. and 1/c,1/d,1/e are in A.P. pro...
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- Find sum of 5 + 55 + 555 + ... to n terms.
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- Find the sum of the following series upto n terms 0.6+0.66+0.666+…
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