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# Joke Time!

1. Originally Posted by dreamur Heto for the not so genius Sent from my SM-N970F using Tapatalk
This 1, too...just to while your time. 2hr limit is way too long.  Sent from my SM-G970F using Tapatalk  Reply With Quote

2. Originally Posted by travajante This 1, too...just to while your time. 2hr limit is way too long.  Sent from my SM-G970F using Tapatalk
Assuming each number in the box is unique:

A + B = 8
C - D = 6
A + C = 13
B + C = 8

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3. Originally Posted by Egan101 Assuming each number in the box is unique:

A + B = 8
C - D = 6
A + C = 13
B + C = 8

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Yes....carry on, bai. Sent from my SM-G970F using Tapatalk  Reply With Quote

4. and suddenly we became math wizard with those memes. Lol  Reply With Quote

5. Originally Posted by travajante Yes....carry on, bai. Sent from my SM-G970F using Tapatalk
Four equations in four unknowns...

Now, where's my scientific calculator?   Reply With Quote

6. Originally Posted by Archerfish Four equations in four unknowns...

Now, where's my scientific calculator? Saan ka nakakabili ng Calculator na puwede gumawa nyan? I remembered back in my high school freshman year that we do it by hand.

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7. doo Verified Tsikot Member Join Date
Apr 2010
Posts
74
By trial & error
A + B = 8

C - D = 6

A + C = 13

B + D = 8

A=3.5
B=4.5
C=9.5
D=3.5

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8. Originally Posted by doo By trial & error
A + B = 8

C - D = 6

A + C = 13

B + D = 8

A=3.5
B=4.5
C=9.5
D=3.5

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Solution:

B+D = 8
+
C-D = 6
=
B+C = 14

B+C = 14
-
A+C = 13
=
B-A = 1
B = A+1

Substitute B to equation 1
A + (A+1) = 8
2A = 7
A = 3.5

B = 8 - A = 4.5
C = 13 - A = 9.5
D = 8 - B = 3.5

A and D are not unique after all.

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9. Originally Posted by Egan101 Saan ka nakakabili ng Calculator na puwede gumawa nyan? I remembered back in my high school freshman year that we do it by hand.

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What a shame! I thought I can get away in getting the answer without me solving it manually but this is only good for 3 equations with 3 unknowns. I think I need to open MATLAB and let the computer do the work for me or perhaps I should exercise my brain. I better look for a pen and paper.   Reply With Quote

10. Originally Posted by doo By trial & error
A + B = 8

C - D = 6

A + C = 13

B + D = 8

A=3.5
B=4.5
C=9.5
D=3.5

Sent from my POCOPHONE F1 using Tapatalk
Trial and error? How do you do that? And the answers​ have "decimals"! You must be a genius.  Reply With Quote 