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Weekend Brain Drill: Can You Solve This In 30 secs? - Education (2) - Nairaland

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Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Hitter(m): 10:15pm On Jul 19, 2015
30 seconds ke
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by gunnersway77(m): 10:16pm On Jul 19, 2015
120 persons

1 Like

Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Nobody: 10:16pm On Jul 19, 2015
The Answer is 5. Handshakes between 5 people will result in a total of 120 handshakes.

5! = 120 handshakes.

17 Likes

Re: Weekend Brain Drill: Can You Solve This In 30 secs? by ZUBY77(m): 10:16pm On Jul 19, 2015
RealEstate34:
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Blockhead, won't you solve the simple maths up there before selling your father's remaining land?

12 Likes 2 Shares

Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Raymondif: 10:16pm On Jul 19, 2015
240
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by betapikin: 10:17pm On Jul 19, 2015
:-X60pple
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by eldav(m): 10:17pm On Jul 19, 2015
121.

Everybody shook hands with everybody else. Since an individual had to shake not more than one person, the individual ended up shaking 120 hands. 120 + 1 (himself) = 121.
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Pacgmt(m): 10:17pm On Jul 19, 2015
60 people are at d party
Only if everyone shakes one another once
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Justinakusu(m): 10:17pm On Jul 19, 2015
I think 5 persons.

1 Like

Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Samfigo1(m): 10:17pm On Jul 19, 2015
16 people....
Analysis; The 16th person will shake 15 persons, the 15th person will shake 14 persons, the 14th person will shake 13 persons it goes on like till the 2nd person shake 1 person so we have......
16+15+14+13+12+11+10+9+8+7+6+5+4+3+2+1= 120people. OP whereis my prize?

1 Like

Re: Weekend Brain Drill: Can You Solve This In 30 secs? by johnpaullie: 10:18pm On Jul 19, 2015
Nuezha:
12.

this is still not correct anyways but it's the closest.
12 people will shake hands 11 times each
then, 11 X 12 people = 121
Unless the OP is playing pranks...
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Royalprestidge(m): 10:19pm On Jul 19, 2015
5people

1 Like

Re: Weekend Brain Drill: Can You Solve This In 30 secs? by franconian: 10:19pm On Jul 19, 2015
I was late to the party...in short party don close before I reach there, so I nor know!

2 Likes

Re: Weekend Brain Drill: Can You Solve This In 30 secs? by drdaniels: 10:19pm On Jul 19, 2015
its definitely 16..

Chief A would shake hands with 15 people. Alhaji B would shake hands with 14 people since he had already shook Chief A's hand. Dr. C would shake hands with 13 people coz he had shook hands with both Chief A and Alhaji B and so on till it gets to just one person

15+14+13+.....+1 =

2 Likes

Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Nobody: 10:19pm On Jul 19, 2015
242
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Nobody: 10:19pm On Jul 19, 2015
There are 16 person there
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Seun(m): 10:20pm On Jul 19, 2015
6.

3 Likes 4 Shares

Re: Weekend Brain Drill: Can You Solve This In 30 secs? by tommykiwi(m): 10:20pm On Jul 19, 2015
120 people attended the party
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by frehage: 10:21pm On Jul 19, 2015
Iamdagreatguy:
Weekend brain drill. The first to get the answer wins a prize:

At a birthday party, everyone shook hands with everybody else. There were 120 handshakes. How many people were at the party?

16 people.
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Nobody: 10:21pm On Jul 19, 2015
15 people, 15 +14 +13......3+2+1= 120

Iamdagreatguy:
Weekend brain drill. The first to get the answer wins a prize:

At a birthday party, everyone shook hands with everybody else. There were 120 handshakes. How many people were at the party?
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by kenedy175(m): 10:22pm On Jul 19, 2015
5! (5 factorial) . They were definitely 5 people at the event

5×4×3×2×1=120

Do further maths in school, dem no go agree.

1 Like

Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Nuezha(m): 10:22pm On Jul 19, 2015
BankoleCruise:

11 x 12=132

Thanks: 11 people not 12
11 people X 10 handshakes = 110
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Lordave: 10:23pm On Jul 19, 2015
16
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Godswillu(m): 10:23pm On Jul 19, 2015
120
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by AKUPSME: 10:23pm On Jul 19, 2015
6 People were at the Party Permutation and Combination
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by Seun(m): 10:23pm On Jul 19, 2015
Actually it's probably 16.
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by soldierdollar(m): 10:23pm On Jul 19, 2015
Answer is 5 .
5 permutation 2 will give u 5 X 4 X 3 X 2 = 120

1 Like

Re: Weekend Brain Drill: Can You Solve This In 30 secs? by BraniacX(m): 10:24pm On Jul 19, 2015
Jamexjulius:
J
J for jagaban!!
Re: Weekend Brain Drill: Can You Solve This In 30 secs? by segunakadri(m): 10:24pm On Jul 19, 2015
15 People

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