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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,877

Hi,

.

#4645. A man sold his watch at a loss of 5%. Had he sold it for $56.25 more, he would have gained 10%. What is the cost price of the watch in $?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,877

Hi,

#4646. Three years ago, the average age of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. Find the present age of the baby.

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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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
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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: 28,877

Hi,

Good attempt, Monox D. I-Fly!

#4647. The perimeters of two similar triangles are 30 centimeters and 20 centimeters respectively. If one side of the first triangle in is 9 centimeters, determine the corresponding side of the second triangle.

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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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,792

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: 28,877

Hi,

The solution #4647 is correct. Good work, Monox D. I-Fly!

#4648. In a farm, there are cows and hens. If heads are counted, there are 180, and if legs are counted, there are 420. Find the number of cows in the farm.

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: 1,792

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: 28,877

Hi,

The solution #4648 is correct. Neat work, Monox D. I-Fly!

#4649. Average age of 6 sons of a family is 8 years. Average age of son together with their parents is 22 years. If father is older than the mother by 8 years, find the age of mother.

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: 1,792

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,877

Hi,

The solution #4649 is correct. Excellent, Monox D. I-Fly!

#4650. The Least Common Multiple of two numbers is 12 times their Greatest Common Divisor. The sum of the GCD and LCM is 403. If one of the numbers is 93, then find the other.

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: 28,877

Hi,

#4651. Find the x-intercept of the graph 7x - 3y = 2.

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: 28,877

Hi,

#4652. A person buys some pencils at 5 for $1 and sells them at 3 for $1. Find his gain percent.

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

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