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#1251 2020-08-19 19:55:44

ganesh
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Re: Compute the solution:

Hi,

Excellent!

732. A person, rowing at the rate of 5 kilometres per hour in still water, takes thrice as much time in going 40 kilometres upstream as in going 40 kilometres downstream. Find the speed of the stream.


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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#1252 2020-08-20 15:54:02

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Re: Compute the solution:


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#1253 2020-08-20 22:40:45

ganesh
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Re: Compute the solution:

Hi,

Neat work!

733. Find the area of the rectangle whose vertices are (-8,4), (-6,6), and (-3,9).


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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#1254 2020-08-21 13:19:39

666 bro
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Re: Compute the solution:


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#1255 2020-08-21 13:53:46

ganesh
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Re: Compute the solution:

Hi,

734. An integer is chosen between 0 and 100. What is the probability of it being
(i) divisible by 7?
(ii) not divisible by 7?


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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#1256 2020-08-22 16:24:17

666 bro
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Re: Compute the solution:


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#1257 2020-08-22 23:22:01

ganesh
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Posts: 31,679

Re: Compute the solution:

Hi,

Neat work!

#715. A bag contains 24 balls of which x are red, 2x are white, and 3x are blue. A ball is selected at random. What is the probability of it being
(i) not red?
(ii) white?


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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#1258 2020-08-23 15:17:32

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Re: Compute the solution:


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#1259 2020-08-23 15:40:19

ganesh
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Posts: 31,679

Re: Compute the solution:

Hi,

Neat work!

716. A coin is tossed 3 times. List the possible outcomes. Find the probability of getting
(i) all heads
(ii) at least two heads.


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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#1260 2020-08-24 15:13:45

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Re: Compute the solution:


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#1261 2020-08-24 15:33:47

ganesh
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Posts: 31,679

Re: Compute the solution:

Hi,

Neat work!

717. Find the sum to 11 terms.

.


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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#1262 2020-08-25 13:26:17

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Re: Compute the solution:


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#1263 2020-08-25 14:03:56

ganesh
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Posts: 31,679

Re: Compute the solution:

Hi,

Neat work!

718. An Arithmetic Progression consists of 37 terms. The sum of the three middle most terms is 225 and the sum of the last three terms is 429. Find the Arithmetic Progression (first four terms).


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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#1264 2020-08-27 00:26:34

666 bro
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Re: Compute the solution:


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#1265 2020-08-27 00:40:47

ganesh
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Registered: 2005-06-28
Posts: 31,679

Re: Compute the solution:

Hi,

Neat work!

719. A bag contains 10 red, 5 blue, and 7 green balls. A balls is drawn at random. Find the probability of this ball being a
(i) red ball
(ii) green ball
(iii) not a blue ball.


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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#1266 2020-08-27 15:21:59

666 bro
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Re: Compute the solution:


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#1267 2020-08-27 16:22:09

ganesh
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Re: Compute the solution:

Hi,

Good work!

720. If P(9a - 2,-b) divides the line segment joining A(3a + 1,-3)and B(8a,5) in the ratio 3:1, find the values of a and 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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#1268 2020-08-28 16:12:12

666 bro
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Re: Compute the solution:


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#1269 2020-08-28 18:27:45

ganesh
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Posts: 31,679

Re: Compute the solution:

Hi,

Excellent!

721. If the points A(1,-2), B(2,3), C(a,2), and D(-4,-3) form a parallelogram, then find the value of 'a' and height of the parallelogram taking AB as base.


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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#1270 2020-08-29 17:17:52

666 bro
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From: Flatland
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Posts: 586

Re: Compute the solution:


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#1271 2020-08-29 20:16:30

ganesh
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Posts: 31,679

Re: Compute the solution:

Hi,

Partially correct. Well done!

722. The line segment joining the points A(3,2) and B(5,1) is divided at the point P in the ratio 1:2 and it lies on the line 3x - 18y + k = 0. Find the value of k.


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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#1272 2020-08-30 15:10:05

666 bro
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From: Flatland
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Posts: 586

Re: Compute the solution:


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#1273 2020-08-30 22:15:47

ganesh
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Registered: 2005-06-28
Posts: 31,679

Re: Compute the solution:

Hi,

Neat work!

723. Area of a sector of central angle 200° of a circle is 770 square centimetres. Find the length of the corresponding arc of this sector. Use


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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#1274 2020-08-31 16:02:14

666 bro
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From: Flatland
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Posts: 586

Re: Compute the solution:


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#1275 2020-08-31 17:47:02

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,679

Re: Compute the solution:

Hi,

Neat work!

724. The length of the minute hand of a clock is 5 cm. Find the area swept by the minute hand during the time period 6:05 am and 6:40 am. Use


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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