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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

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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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 621

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

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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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 621

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

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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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 621

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

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?

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

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 621

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

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.

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

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 621

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

Hi,

Neat work!

717. Find the sum to 11 terms.

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

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 621

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

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).

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

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 621

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

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.

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

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 621

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

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.

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

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 621

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

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.

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

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 621

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

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.

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

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 621

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

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

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

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 621

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 32,465

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

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

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