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How Was Your Dpr Test?

Mine was not good! I was shocked at the types of questions. After reading my GMAT from cover to cover, i discovered all my efforts were wasted. The questions were based Geography and physics. It was too technical! Integration. Differentiation, ah ah! it was too much o. Meanwhile who can answer this question: if everybody at a party shook and with each other, and there was a total of 66 handshakes. How many people attended the party? DPR was my first aptitude test since becoming a graduate and i left the hall feeling like a dunce!

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Newbie
8 answers

12 people attended

1 person => 0 hand shake

2 persons => 1 handshake

3 persons => 3 handshakes

4 persons => 6 handshakes (Answers above were got from real graph as can be practiced. But following the above sequence, 4 persons would make 3 +3 = 6 hand shakes)

5 persons => 10 handshakes (4 +6 = 10)

6 persons => 15 handshakes (5+10=15)

7 persons => 21 handshakes (6+15=21)

8 persons => 28 handshakes (7+21=28)

9 persons => 36 handshakes (8+28=36)

10 persons => 45 handshakes (9+36=45)

11 persons => 55 handshakes (10+45=55)

12 persons => 66 handshakes (11+55=66)

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Student

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Newbie

Hmm,wuruwuru to the answer.

Haven't you heard of the rule of possible outcomes?

Try solving the question from the end to the start

66=11+10+9+8+7+6+5+4+3+2+1

Eleven people were present in that party.

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Newbie

I mean the answer to that dpr question is 11 people. 66 that shookhands means 66/2 = 33 pple.

stage 2, all shook hands ,if u look well some hand themselves.

some will have a+2a=66 -> 3a=66, a=22.

the real number of pple at the party will be

All that shook hands twice minus all that shook hands once = 33-22=11 people.

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Newbie

I answer to that dpr question is 11 people. 66 that shookhands means 66/2 = 33 pple.

stage 2, all shook hands ,if u look well some hand themselves.

some will have a+2a=66 -> 3a=66, a=22.

the real number of pple at the party will be

All that shook hands twice minus all that shook hands once = 33-22=11 people.

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Newbie

I was not surprise at the questions because my spirit told me not to read GMAT at all,I believe my answers will bless mankind and the marker will feel pleased after marking, I believe God for success, CONGRATULATIONS,

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Newbie

its statistics and very practical just do the maths and u'l get the answer.

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