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## #6626 2020-05-19 00:18:11

ganesh
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Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4770. The average of four consecutive odd numbers is 6. Find the smallest of these numbers.

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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## #6627 2020-05-29 00:17:43

ganesh
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Posts: 31,165

### Re: Oral puzzles

Hi,

#4771. Ralph obtained 36, 25, 34, and 25 marks in history, geography, biology, and physics. What are his average marks?

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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## #6628 2020-05-31 22:55:23

ganesh
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Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4772. The angles of a triangle are in Arithmetic Progression and the greatest angle is double the least. What is the ratio of the angles in the radian measure?

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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## #6629 2020-06-02 00:40:31

ganesh
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Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4773. The average of 30 numbers is 40 and that of the other 40 numbers is 30. Find the average of all the numbers.

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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## #6630 2020-06-04 00:26:52

ganesh
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Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4774. The average age of 50 students and the principal is 25 years. When the principal's age is excluded, the average age decreases by 1 year. What is the age (in years) of the principal?

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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## #6631 2020-06-06 00:23:59

ganesh
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Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4775. The age of two toddlers Ted and Wilson is in the ratio 1:3. After 5 years, the ratio of their ages will become 3:4. Find the average of their ages after 15 years.

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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## #6632 2020-06-08 00:31:36

ganesh
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Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4776. The average of nine numbers is 50. The average of the first five numbers is 54 and that of last three numbers is 52. Find the sixth number.

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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## #6633 2020-06-10 00:02:20

ganesh
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Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4777. If we take four numbers, the average of the first three is 16 and that of the last is 15. If the first number is 19, find the last number.

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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## #6634 2020-06-11 00:37:22

ganesh
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Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4778. The average of five prime numbers is 6.If the first four of them are one-digit prime numbers, find the value of the 5th prime number.

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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## #6635 2020-06-13 00:22:07

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4779. Find the average of the first 10 prime numbers.

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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## #6636 2020-06-14 00:13:41

ganesh
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Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4780. If a, b, c, d, and e are five consecutive even numbers, find their average in terms of a.

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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## #6637 2020-06-15 01:45:31

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4781. Find the average of all the numbers between 9 and 31 which are divisible by 5.

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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## #6638 2020-06-17 00:21:21

ganesh
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Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4782. The average of 9 integers is found to be 11. But after calculation, it was detected, by mistake, the integer 23 was copied as 32, while calculating the average. After the correction is made, find the new average.

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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## #6639 2020-06-18 00:16:23

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4783. If the average of five consecutive even numbers is 24, find the largest of these numbers.

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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## #6640 2020-06-19 00:33:45

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4784. The average of five consecutive even numbers is 24. Find the difference between the largest and the smallest number.

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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## #6641 2020-06-21 00:12:14

ganesh
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Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4785.A zoo has an average of 510 visitors on Sundays and 240 on other days. Find the average number of visitors per day in a month of 30 days beginning with a Saturday.

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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## #6642 2020-06-23 03:03:29

ganesh
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Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4786. The average of 5 quantities is 6. The average of three of them is 8. What is the average of the remaining two numbers?

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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## #6643 2020-06-25 00:19:16

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4787. The average of temperatures at noon time from Monday to Friday is 50° C; the lowest one is 45° C. What is the possible maximum of the temperature (in °C)?

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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## #6644 2020-06-27 00:24:00

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4788. Find the average of all odd numbers between 20 and 30.

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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## #6645 2020-06-29 00:16:48

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4789. The average age of three boys is 16 years. If their ages are in the ratio 4:5:7, what is the age of the eldest boy?

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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## #6646 2020-07-01 00:13:31

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4790. Find the average of first 20 multiples of 4.

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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## #6647 2020-07-03 00:06:16

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4791. If the sum of three consecutive even numbers is 36 more than the average of these numbers, find the largest of these numbers.

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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## #6648 2020-07-05 00:24:18

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4792. Four years ago, the average of A, B, and C was 23 years and that of B, and C, three years ago was 24 years. Find A's present age.

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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## #6649 2020-07-07 00:41:33

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4793. The average weight of 35 students in a school is 40 kilograms. If 5 students of an average weight 100 kilograms left the school, find the new average of remaining students.

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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## #6650 2020-07-09 00:32:20

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,165

### Re: Oral puzzles

Hi,

#4794. When a student weighing 46 kilograms left a class, the average weight of the remaining 59 students increased by 300 grams. What is the average weight of the remaining 59 students?

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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