Math Is Fun Forum

math9maniac

Member

From: Tema

Registered: 2015-03-30

Posts: 443

Re: Compute the solution:

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Only a friend tells you your face is dirty.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,422

Re: Compute the solution:

Hi math9maniac,

The solution 292 (i), (ii),  and (iii) are  correct! Eexcellent !

293.  Solve the following equation for x.

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Compute the solution:

Hi ganesh;

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,422

Re: Compute the solution:

Hi bobbym,

The problem 293 is fairly difficult. Putting A = 9,  B = -9(a + b),  C =

,  it can be solved.

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Compute the solution:

Hi;

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,422

Re: Compute the solution:

Hi bobbym,

The the two solutions in 293 are correct!  Remarkable!

294.  Places A and B 100 kilometers apart on a highway.  One car starts from A and another from B at the same time. If the cars travel in the same direction at different speeds, they meet in 5 hours. If they travel towards each other ,  they meet in 1 hour.  What are the speeds of the two cars?

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Compute the solution:

Hi;

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,422

Re: Compute the solution:

Hi bobbym,

The solution 294 in correct!  Neat work!

295.  One card is drawn at random from a well shuffled pack of 52 cards.  What is the probability that the card drawn is either a red card or a king?

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Compute the solution:

Hi;

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,422

Re: Compute the solution:

Hi bobbym,

Two solution 295 is ccorrect! Excellent!

296. A bag contains 5 black, 7 red, and 3 white balls. A ball is drawn from the bag at random.  Find the probability that the ball drawn is
(i) red
(ii)black or white
(iii) not black.

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Compute the solution:

Hi;

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,422

Re: Compute the solution:

Hi bobbym,

The solution 296 (all three parts) is/are correct! Good work!

297. If twice  the area of a smaller square is subtracted from the area of a larger square, the result is 14 square centimeters. However, if twice the area of the larger square is added to three times the area of the smaller square, the result is 203 square centimeters. Determine the sides of the two squares.

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Compute the solution:

Hi;

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,422

Re: Compute the solution:

Hi bobbym,

The solution 297 is correct!  Excellent!

298.  If the sum of first 7 terms of an Arithmetic Progression is 49 and that of 17 terms is 289, find the sum of first 'n' terms.

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Compute the solution:

Hi;

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,422

Re: Compute the solution:

Hi bobbym,

The solution 298 is correct! Marvelous!

299. If the product of three consecutive terms in Geometric Progression is 216 and sum of their products in pairs is 156, find them.

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Compute the solution:

Hi;

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,422

Re: Compute the solution:

Hi bobbym,

The solution 299 in correct!  Excellent!

300.  A sum of $1000 is deposited every year at 8% simple interest. Calculate the interest at the end of each year for 3 years. Do these interest amounts form an Arithmetic Progression?  If so, find the total interest at the end of 30 years.

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

zetafunc

Moderator

Registered: 2014-05-21

Posts: 2,436

Website

Re: Compute the solution:

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Compute the solution:

Hi;

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,422

Re: Compute the solution:

Hi zetafunc and bobbym,

Excellent, bobbym! Good attempt, zetafunc!

301.  Radius and slant height of a cone are in the ratio 3:5. If the curved surface area is

square centimeters, then find its total surface area.

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Compute the solution:

Hi;

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,422

Re: Compute the solution:

Hi bobbym,

The solution 301 in correct! Good work!

302. A train travelled a certain distance at a uniform speed. If the train had been 6 kilometers per hour faster, iit would have taken 4 hours less than the scheduled time.  If the train were slower by 6 kilometers per hour, then it would have taken 6 hours more than the scheduled time. Find the distance covered by the train.

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Compute the solution:

Hi;

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,422

Re: Compute the solution:

Hi bobbym,

The solution 302 is correct! Brilliant!

303.  Solve (for x);

.

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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