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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 24,038

Hi,

#3817. A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is jack, queen, or king.

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: 1,114

*Last edited by Monox D. I-Fly (2017-10-15 16:18:23)*

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: 24,038

Hi,

The solution #3817 is correct. Neat work, Monox D. I-Fly!

#3818. A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is neither a red card nor a queen.

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: 1,114

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: 24,038

Hi,

Good attempt, Monox D. I-Fly!

#3819. A 16 meter deep well with diameter 3.5 meter is dug up and the earth from it is spread evenly to form a platform 27.5 meter by 7 meter. Find the height of the platform,

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: 24,038

Hi,

#3820. Solve:

3x + y + 1 = 0,

2x - 3y + 8 = 0.

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: 24,038

Hi,

#3821. Solve:

2x + y - 3 = 0,

2x - 3y - 7 = 0.

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: 1,114

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: 24,038

Hi,

The solution set in #3821 is correct. Good work, Monox D. I-Fly!

#3822. Solve:

x + y = 4,

2x - 3y = 3.

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: 1,114

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 24,038

Hi,

The solution #3822 is correct. Neat work, Monox D. I-Fly!

#3823. Solve:

2x + 3y = 4,

x - y + 3 = 0.

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: 1,114

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 24,038

Hi,

The solution set in #3823 is correct. Good work, Monox D. I-Fly!

#3824. Solve:

2x - 3y + 13 = 0,

3x - 2y + 12 = 0.

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: 24,038

Hi,

#3825. Solve:

2x + 3y + 5 = 0,

3x - 2y - 12 = 0.

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: 24,038

Hi,

#3826. Solve:

3x - 7y + 10 = 0,

y - 2x - 3 = 0.

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: 24,038

Hi,

#3827. Solve:

x + 2y + z = 7,

x + 3z = 11,

2x - 3y = 1.

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: 24,038

Hi,

#3828. Solve:

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: 24,038

Hi,

#3829. Solve:

11x + 15y + 23 = 0,

7x - 2y - 20 = 0.

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: 24,038

Hi,

#3830. Solve:

,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: 24,038

Hi,

#3831. Find the mean of first 'n' odd natural number.

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: 24,038

Hi,

#3832. If the mean of first n odd numbers is

, find the value of n.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: 24,038

Hi,

#3833. If the Arithmetic Mean of x, x + 3, x + 6, x + 9, and x + 12 is 10, what is the value of x?

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: 1,114

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 24,038

Hi,

The solution #3833 is correct. Neat work, Monox D. I-Fly!

#3834. If the median of the data : 24, 25, 26, x + 2, x + 3, 30, 31, 34 is 27.5, then find the value of x.

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: 1,114

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