Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

#4662. Evaluate:

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.

Offline

**math9maniac****Member**- From: Tema
- Registered: 2015-03-30
- Posts: 441

Only a friend tells you your face is dirty.

Offline

**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000

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.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

.

The solution #4662 is correct. Neat work, math9maniac, and Monox D. I-Fly!

#4663. Evaluate:

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.

Offline

**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000

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.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

.

Good attempt, Monox D. I-Fly!

#4664. Solve:

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.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

#4665. Least Common Multiple of two numbers is 48. The numbers are in the ratio 2:3. Find the sum of the numbers.

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

Offline

**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000

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.

Offline

**seercalf****Member**- From: Kenya
- Registered: 2019-10-13
- Posts: 17

Would you give a solution for this problem:

ganesh wrote:

Hi,

#4665. Least Common Multiple of two numbers is 48. The numbers are in the ratio 2:3. Find the sum of the numbers.

Trust in God and do the right!

Trust in the Lord with all your heart and lean not on your own understanding; in all your ways submit to him, and he will make your paths straight. (**Proverbs 3 : 5-6**)

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi Monox D. I-Fly and seercalf,

The solution is

and .The solution #4665 is correct. Excellent, Monox D. I-Fly!

#4666. Solve:

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

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

.

#4667. Solve:

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

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

.

#4668. The sum of a two-digit number is 12 and the difference between the two digits of the two-digit number is 6. What is the two digit number?

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

Offline

**math9maniac****Member**- From: Tema
- Registered: 2015-03-30
- Posts: 441

Only a friend tells you your face is dirty.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

The solution #4668 is correct.Good work!

#4669. The interest earned on $15000 in three years at simple interest is $5400. Find the rate of interest per annum.

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

Offline

**math9maniac****Member**- From: Tema
- Registered: 2015-03-30
- Posts: 441

Only a friend tells you your face is dirty.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

.

The solution #4669 is correct. Excellent!

#4670. There would be a 10% loss, if rice is sold at $54 per kilogram. To earn a profit of 20%, what will be the price of rice per kilogram?

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

Offline

**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000

May his adventurous soul rest in peace at heaven.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

The solution #4670 is correct. Neat work!

#4671. The average of the daily incomes of A, B, and C is $250. If B earns $30 more than C and A earns double of C. What is the daily income of C?

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

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

#4672. Solve:

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

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

.

#4673. Solve:

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

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

#4674. In how many different ways can the letters of the word 'BANKING' be arranged?

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

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

#4675. Roger's present age is three years less than twice his age 12 years ago. Also, the respective ratio of Raymond's present age and Roger's present age is 4 : 9. What will be Raymond's age after 5 years?

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

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

#4676. Find the value of x.

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

Offline

**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000

May his adventurous soul rest in peace at heaven.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 29,760

Hi,

The solution #4676 is correct. Neat work!

#4677.The average marks obtained by 40 students of a class is 86. If the 5 highest marks are removed, the average reduces by one mark. Find the average marks of the top 5 students.

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

Offline