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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

SP#415. Find the Arithmetic Mean of the sequence -2, 1, 4, 7, ..., 100.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

.

SP#416. Find the 8th term of the Geometric Progression 3, 6, 12, 24, ...

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,239

Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

The

is correct. Neat work, Monox D. I-Fly!SP#417. Which term of the Arithmetic Progression 6561, 2187, 729, ... is 1?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,239

Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

The

is correct. Excellent, Monox D. I-Fly!SP#418. Find the sum of the first six terms of the Arithmetic Progression 1, 5, 25, 125, ...

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,239

Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

The

is perfect. Marvelous, Monox D. I-Fly!#SP#419. Find the Geometric Mean of 2, 4, 8, ..., 128.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

.

SP#420. Find the value of

.Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

.

SP#421. Find the value of

.Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

.

SP#422. Find the least value of 'n' such that

exceeds 2000.Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

SP#423. Find the number of terms in the given series: 1 + 3 + 5 + 7 + .... + 73 + 75.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,239

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

The

is correct. Neat work, Monox D. I-Fly!SP#424. Find the sum : 101 + 102 + 103 + .... + 200.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,239

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

The

is perfect. Excellent, Monox D. I-Fly!SP#425. Which term of the Arithmetic Progression 72, 63, 54, ... is zero?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,239

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

The

is correct. Neat work, Monox D. I-Fly!SP#426. If the 4th term of an Arithmetic Progression is 14 and the 12th term is 70, find the first term.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,239

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

The

is correct. Excellent, Monox D. I-Fly!SP$#427. Which term of the Arithmetic Progression 7, 10, 13, ... is 151?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,239

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

The

is correct. Keep it up, Monox D. I-Fly!SP#428. If the 10th term of the Arithmetic Progression a, a - b, a - 2b, a - 3b, ... is 20 and the 20th term is 10, find the 'x'th of the Arithmetic Progression.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

.

SP#429. Find the value of

.Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

SP#430. Find the value of

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 25,379

Hi,

SP#430. Find the value of

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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