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## #1 2009-03-10 17:08:09

ganesh
Registered: 2005-06-28
Posts: 23,781

### Exercise

If 8 Arithmetic Means are placed between 2 and 17, what would the 5[sup]th[/sup] Arithmetic mean be equal to?

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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## #2 2009-03-11 00:00:58

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

What is the sum of the roots of the equation x[sup]2[/sup]-6x+2 = 0?

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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## #3 2009-03-11 00:11:33

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

If the roots of the quadratic equation px[sup]2[/sup]+qx+r = 0 are reciprocal of one another, then which of the following is true?

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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## #4 2009-03-11 16:47:55

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

What is the 200[sup]th[/sup] term of the series
3, 7, 11, 15, ....?

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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## #5 2009-03-12 06:43:39

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

What is the value of cosθ if

?

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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## #6 2009-03-12 18:39:38

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

If the quadratic equation 2x[sup]2[/sup] + 3x + p = 0 has equal roots, then what is the value of p?

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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## #7 2009-03-12 18:47:38

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

If 3 + 3b + 3b[sup]2[/sup] +3b[sup]3[/sup] + ....∞  = 45/8 and b>0, then what is the value of b?

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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## #8 2009-03-12 19:08:32

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

A polygon has 44 diagonals. How many sides does it have?

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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## #9 2009-03-12 19:40:33

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

What is the 10[sup]th[/sup] term in the expansion of (x-1)[sup]11[/sup] (in decreasing powers of x)?

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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## #10 2009-03-12 20:13:50

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

What is the value of

?

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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## #11 2009-03-13 02:25:35

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

If b tan θ = a, then what is the value of

?

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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## #12 2009-03-13 03:19:48

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

What is the value of the expression
cos170°cos10° - sin170°sin10°?

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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## #13 2009-03-13 04:09:46

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

Whatis the value of

?

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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## #14 2009-03-13 04:29:39

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

What is the value of

?

Last edited by ganesh (2009-03-13 04:48:06)

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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## #15 2009-03-13 06:13:05

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

What is the value of

?

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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## #16 2009-03-13 07:40:54

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

If x=y[sup]a[/sup], y=z[sup]b[/sup], z=x[sup]c[/sup], find the value of abc.

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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## #17 2009-03-13 09:04:34

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

Whatis the value of

?

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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## #18 2009-03-13 09:12:37

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

What is the value of

?

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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## #19 2009-03-13 19:00:18

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

What is the value of x if

?

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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## #20 2009-03-13 19:12:58

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

What is the value of x if

?

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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## #21 2009-03-13 19:22:14

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

Find the value of

.

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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## #22 2009-03-13 19:43:35

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

What is the value of

?

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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## #23 2009-03-14 02:11:45

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

Let a, b, and c represent the shares of three persons A, B, and C. A sum of \$370 is to be shared among A, B, and C such that

.
What is A's share?

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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## #24 2009-03-14 02:21:02

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

Two numbers are in he ratio 3:5. If 9 is subtracted from each of them, then their ratio becomes 12:23. Find the smaller number.

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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## #25 2009-03-14 02:47:49

ganesh
Registered: 2005-06-28
Posts: 23,781

### Re: Exercise

If the diagonals of a square are in the ratio 2:5, then what would the ratio of their areas be?

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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