Math Maniac ? Try This . - Forum Games

Math Maniac ? Try This . - Forum Games - Nairaland

Nairaland Forum › Entertainment › Forum Games › Math Maniac ? Try This . (1037 Views)

Math Maniac ? Try This . by agentofchange1(op): 11:42am On Feb 26, 2015*

kinda cheep I guess

I bought 6lamps from the market , positioned them at 6corners of a dark hexagonal-building at about 8:30pm all lamps functioning well, using all/any of the lamps . in how many ways can the building be illuminated ?

answer asap..

Re: Math Maniac ? Try This . by Nobody: 11:47am On Feb 26, 2015

ONE WAY.

Re: Math Maniac ? Try This . by agentofchange1(op): 11:51am On Feb 26, 2015

DDeliverer:
ONE WAY.

haha.....how I wish ur. close ..

Re: Math Maniac ? Try This . by ayodijex(m): 12:00pm On Feb 26, 2015

6 ways?..(6 permutation 6)

Re: Math Maniac ? Try This . by agentofchange1(op): 12:08pm On Feb 26, 2015

ayodijex:
6 ways?..(6 permutation 6)

no sir....

Re: Math Maniac ? Try This . by html14java(f): 4:01pm On Feb 26, 2015

1345

Re: Math Maniac ? Try This . by dejt4u(m): 4:17pm On Feb 26, 2015

agentofchange1:
no sir....

720

Re: Math Maniac ? Try This . by agentofchange1(op): 5:56pm On Feb 26, 2015

Lol.

^^

all wrong .

Re: Math Maniac ? Try This . by fio(m): 6:37pm On Feb 26, 2015

978 ways

Re: Math Maniac ? Try This . by dejt4u(m): 6:44pm On Feb 26, 2015

agentofchange1:
Lol.

^^

all wrong .

Re: Math Maniac ? Try This . by agentofchange1(op): 7:56pm On Feb 26, 2015

dejt4u:
63

correct!!.

show workings..

Re: Math Maniac ? Try This . by dejt4u(m): 8:32pm On Feb 26, 2015

agentofchange1:
correct!!.

show workings..

⁶C₁ + ⁶C₂ + ⁶C₃ + ⁶C₄ + ⁶C₅ + ⁶C₆
= 6 + 15 + 20 + 15 + 6 + 1
= 63

Re: Math Maniac ? Try This . by agentofchange1(op): 8:41pm On Feb 26, 2015

dejt4u:
⁶C₁ + ⁶C₂ + ⁶C₃ + ⁶C₄ + ⁶C₅ + ⁶C₆
= 6 + 15 + 20 + 15 + 6 + 1
= 63

nice 1 ..man

or simply

for general case .

2ⁿ -1

n=6

=> 2⁶ - 1
=64-1=63

hence they are 63ways of illuminating the building .

@bravo.

1 Like

Re: Math Maniac ? Try This . by dejt4u(m): 8:45pm On Feb 26, 2015

agentofchange1:
nice 1 ..man

or simply

for general case .

2ⁿ -1

n=6

=> 2⁶ - 1
=64-1=63

hence they are 63ways of illuminating the building .

@bravo.

tnx.. I dn learn new thing oo..

I thought gen. Case is (n!-1).
God bless ya

Re: Math Maniac ? Try This . by ayodijex(m): 8:45pm On Feb 26, 2015

dejt4u:
⁶C₁ + ⁶C₂ + ⁶C₃ + ⁶C₄ + ⁶C₅ + ⁶C₆
= 6 + 15 + 20 + 15 + 6 + 1
= 63

hmm..nice one
all/any...
Thats the statement.
*doffs cap*

1 Reply

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