Math Is Fun Forum

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

You are not logged in.

#1551 2021-01-28 22:45:39

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 630

Re: Compute the solution:

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

Offline

#1552 2021-01-28 23:44:21

ganesh
Registered: 2005-06-28
Posts: 33,015

Re: Compute the solution:

Partially correct! Well done!

862. Find the number of solutions of

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

#1553 2021-01-29 03:28:41

irspow
Member
Registered: 2005-11-24
Posts: 1,055

Re: Compute the solution:

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

#1554 2021-01-29 14:13:01

ganesh
Registered: 2005-06-28
Posts: 33,015

Re: Compute the solution:

Hi,

Good work!

863. Find the unit digit of the expression

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

#1555 2021-01-31 09:46:45

irspow
Member
Registered: 2005-11-24
Posts: 1,055

Re: Compute the solution:

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

#1556 2021-01-31 13:33:13

ganesh
Registered: 2005-06-28
Posts: 33,015

Re: Compute the solution:

Hi,

Excellent!

864. If (a + b + c) = 42, then find the maximum value of (a - 12)(b + 14)(c - 8)

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

#1557 2021-02-01 08:47:56

irspow
Member
Registered: 2005-11-24
Posts: 1,055

Re: Compute the solution:

What are the restrictions on a, b, and c? All positive, all different, all integers, zeros allowed? There will be several answers depending on the restrictions.

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

#1558 2021-02-01 15:03:41

ganesh
Registered: 2005-06-28
Posts: 33,015

Re: Compute the solution:

Hi irspow,

865. How many numbers between 400 and 800 are divisible by 4, 5, and 6?

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

#1559 2021-02-02 03:50:22

irspow
Member
Registered: 2005-11-24
Posts: 1,055

Re: Compute the solution:

Last edited by irspow (2021-02-02 04:00:35)

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

#1560 2021-02-02 13:14:20

ganesh
Registered: 2005-06-28
Posts: 33,015

Re: Compute the solution:

Hi,

865. Find three consecutive numbers such that twice the first, three times the second, and four times the third together make 191.

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

#1561 2021-02-03 04:53:37

irspow
Member
Registered: 2005-11-24
Posts: 1,055

Re: Compute the solution:

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

#1562 2021-02-03 14:10:40

ganesh
Registered: 2005-06-28
Posts: 33,015

Re: Compute the solution:

Hi,

Neat work!

866. The product of three consecutive odd numbers is 24273. Find the smallest number.
a) 25
b) 29
c) 23
d) 37
e) 27

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

#1563 2021-02-04 08:09:48

irspow
Member
Registered: 2005-11-24
Posts: 1,055

Re: Compute the solution:

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

#1564 2021-02-04 14:34:04

ganesh
Registered: 2005-06-28
Posts: 33,015

Re: Compute the solution:

Hi,

Excellent!

867. How many natural numbers are there lying between 134 and 467 which are 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.

Offline

#1565 2021-02-05 06:56:16

irspow
Member
Registered: 2005-11-24
Posts: 1,055

Re: Compute the solution:

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

#1566 2021-02-05 14:08:49

ganesh
Registered: 2005-06-28
Posts: 33,015

Re: Compute the solution:

Hi,

Neat work!

868. By how much is one-fourth of 428 smaller than five-sixth of 216?

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

#1567 2021-02-07 05:27:46

irspow
Member
Registered: 2005-11-24
Posts: 1,055

Re: Compute the solution:

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

#1568 2021-02-07 13:32:39

ganesh
Registered: 2005-06-28
Posts: 33,015

Re: Compute the solution:

Hi,

Good work!

869. The product of the consecutive numbers is 3360. Which is the least number?
a) 17
b) 14
c) 13
d) 16
e) None of these.

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

#1569 2021-02-07 21:58:11

Denominator
Member
Registered: 2009-11-23
Posts: 215

Hello,

Offline

#1570 2021-02-07 23:38:37

ganesh
Registered: 2005-06-28
Posts: 33,015

Re: Compute the solution:

Hi,

Neat work!

870. What is the smallest number by which 4320 be divided to make it a perfect cube?

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

#1571 2021-02-08 04:41:01

irspow
Member
Registered: 2005-11-24
Posts: 1,055

Re: Compute the solution:

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

#1572 2021-02-08 13:51:07

ganesh
Registered: 2005-06-28
Posts: 33,015

Re: Compute the solution:

Hi,

Excellent!

871. Find the least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4, and 3?

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

#1573 2021-02-09 06:21:41

irspow
Member
Registered: 2005-11-24
Posts: 1,055

Re: Compute the solution:

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

#1574 2021-02-09 14:20:53

ganesh
Registered: 2005-06-28
Posts: 33,015

Re: Compute the solution:

Hi,

Neat work!

872. What is the least number to be added to 4523 to make it a perfect square?

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

#1575 2021-02-10 05:50:50

irspow
Member
Registered: 2005-11-24
Posts: 1,055

Re: Compute the solution:

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline