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Nov 13, 2013

The ratio of the sum of n terms of two A.P.s is (7n+1):(4n+27).Find the ratio of their mth term.

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Lavanya N

Nov 24, 2013

If mth term of an A.P is 1/n and the nth term is 1/m show that the sum of mn term is 1/2(mn+1)

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Ishita Gupta

Feb 27, 2015

In an ap of 50 terms, the sum of 1st 10 terms is 210 and the sum of its last 15 terms is 2565. find the a.p.

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David

Feb 19, 2015

If m times the m^{th }term^{ }of an AP is equal to n times its n^{th} term, find (m+n)^{th} term.

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Manish B

Nov 21, 2014

How many three digit numbers are divisible by 7?

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D narayana

Mar 14, 2015

The sum of first n terms of an AP is 3n^{2}+4n find the 25th term of this AP.

Given S

Ishita Gupta

Feb 11, 2015

If the sum of 3 numbers in a.p. is 12 and the sum of their cubes is 288. find the numbers.

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David

Feb 19, 2015

The angles of a triangle are in AP. If the greatest angle is twice the least, find all the angles.

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Saumya

Mar 11, 2014

If pth term of an A.P is 1/q and its qth term is 1/p then show that its (pq)th terms is ---- 1/2 (pq + 1)..........

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Narasimha mn

Oct 26, 2013

find the middle terms in the ap 20,16,12.............[-176]

Given AP is 20,16,12............. - 176

First term (a) = 20

Common difference (d) = 16 - 20 = â€“4

We know the last ter...

Venkatesh

Nov 13, 2013

The ratio of the sum of n terms of two A.P.s is (7n+1):(4n+27).Find the ratio of their mth term.

This answer has an image. Please click on the question to read more.

Lavanya N

Nov 24, 2013

If mth term of an A.P is 1/n and the nth term is 1/m show that the sum of mn term is 1/2(mn+1)

This answer has an image. Please click on the question to read more.

Ishita Gupta

Feb 27, 2015

In an ap of 50 terms, the sum of 1st 10 terms is 210 and the sum of its last 15 terms is 2565. find the a.p.

This answer has an image. Please click on the question to read more.

David

Feb 19, 2015

If m times the m^{th }term^{ }of an AP is equal to n times its n^{th} term, find (m+n)^{th} term.

This answer has an image. Please click on the question to read more.

Manish B

Nov 21, 2014

How many three digit numbers are divisible by 7?

This answer has an image. Please click on the question to read more.

D narayana

Mar 14, 2015

The sum of first n terms of an AP is 3n^{2}+4n find the 25th term of this AP.

Given S

Ishita Gupta

Feb 11, 2015

If the sum of 3 numbers in a.p. is 12 and the sum of their cubes is 288. find the numbers.

This answer has an image. Please click on the question to read more.

David

Feb 19, 2015

The angles of a triangle are in AP. If the greatest angle is twice the least, find all the angles.

This answer has an image. Please click on the question to read more.

Saumya

Mar 11, 2014

If pth term of an A.P is 1/q and its qth term is 1/p then show that its (pq)th terms is ---- 1/2 (pq + 1)..........

This answer has an image. Please click on the question to read more.

Narasimha mn

Oct 26, 2013

find the middle terms in the ap 20,16,12.............[-176]

Given AP is 20,16,12............. - 176

First term (a) = 20

Common difference (d) = 16 - 20 = â€“4

We know the last ter...