# Technothlon 2016 hauts

As the leader of his island Tintin has decided to take matters into his own hands and rebel against the king.

THE ISLAND

• Question 1 Before leaving, he wants to test whether his friend Captain Haddock is wise enough, so he places three boxes A.B,C contain initially 0, 0, 27 balls respectively. He tells that he wants equality among the boxes, and at every $i^{th}$ move you make, you must transfer exactly $i$ balls from one box to another. And you cannot transfer balls between A and B. How many minimum steps are required (if possible) to get into equal number of balls in each box?

A). 7 B). 9 C).8 D) Not possible.

• Question 2 Walking along, Tintin overheard the two island gate guards, Thomson and Thompson chatting among themselves.

Thomson: He told us that we have consecutive letters on our papers.

Thompson: Yeah he told me too.

Thomson: I don't know what your letter is.

Thompson: Neither do I know your letter.

Thomson: Now I know.

Tintin listened this conversation and wondered what the two letters could be. When he was about to leave island Thomson stopped him and told him to say the password, which were the two letters. Maximum of how many attempts does Tintin need to make to have the correct pair of letters, and thus pass successfully?

A). 1 B). 2 C). 4 D). More than 4

THE SCIENTIST'S HELP

• Question 3 After leaving his island, Tintin seeked the help of tge great scientist Dr Calculus who stayed in his research island When he landed on the island, he notices a map of 25 labs, aligned in a 5x5 pattern, of which a few labs were burned (Coloured in figure). Only 15 labs from #1 to #15 are not burnt.

He noticed the map, but realised that the numbers were missing from it. Instead, an instruction read "The distance from lab #1 to lab #2 will be less than the from lab #2 to lab #3. which is less than the distance from lab #3 to lab#4, and so on". Also, only the intact labs were numbered. Find out the value of a+ b(where a and b are the lab numbers). Note that the Distance is calculated from the centre of one to the centre of another.

A). 10 B). 12 C). 14 D). 16

After coming out of his town, Tintin goes to Al Capone's island to gather more followers to assist him in his revolution.

AL CAPONE'S ISLAND

• Question 4 Al capone and his n-1 friends are sitting in a circular fashion when Tintin meets them(sitting of n people). Each of them owns coin. First person passes 1 coin to the Person on his left side. The second person in turn passes 2 coins to the person siting on the left Third person passes 1 coin to the left, 4th passes 2 coin to his left and so on, So each person receiving coin from the right has to pass 2 coins to the left Similarly, a person receiving 2 coins from the right has to pass I coin to the left.

If at any point of time, a person runs out of coin he is thrown out of the game. The game will terminate if at the end only 1 person is with coins in his possession. There might be walues of n where the game may not terminate e g 3 persons left with 4 4 4 coins respectively For how many different values of n from 4 to 100 does the game terminate?

(a) 16 (b) 7 (c) 46 (d) 10

• Question 5:

Capone loved balances. He took Tintin to his famous room of Balance where there was present a huge complex balance as shown in the fig The marks on the stick are at 1 metre distance each and the white small circles represent the paint around which the stick is hinged. There are 12 identical looking weights which weigh 1kg, 2kg, 3kg upto 12kg. He asked Tintin to identify the weight of each of the weights given that the stem is balanced Tintin identified 9 of them correctly except the encircled ones, can you help him in telling the sum of the weights of the encircled ones? For balancing the total system all the sticks that hold the weights need io be balanced themselves. For each of the stick being balanced the following condition need to be satisfied

A)17 B)18 C) 19 D) 20

Those who find the answers and solutions please share

Note by Prince Loomba
3 years, 8 months ago

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For Q1, Put 1 ball in A from C, 2 balls in B from C, 3 balls in A from C, 4 balls in A from C, 5 balls in C from A, 6 balls in A from C and 7 balls in B from C.

Therefore, A has 1+3+4-5+6 = 9 and B has 2+7 = 9 balls. Minimum number of moves 7.

- 3 years, 8 months ago

Good solution. Idk whether to be happy or not. As I got the solution but my answer is wrong

- 3 years, 8 months ago

I got it wrong too :( Lazy caterer's sequence and marks go Ka Boom!

- 3 years, 8 months ago

How much marks in technothlon ?

- 3 years, 8 months ago

Results have not come yet, but I expect around 50-60.

- 3 years, 8 months ago

Answer key is out You can check

- 3 years, 8 months ago

A7 B2

- 3 years, 8 months ago

How? I am not getting 1st but the 2nd in 4, what about CB and YX?

- 3 years, 8 months ago

CB and XY are the two pairs, right? I don't he has to say them in order. Just the two pairs of letters.

- 3 years, 8 months ago

Just above its written its a password. There order matters.

- 3 years, 8 months ago

Start from lower right corner. You have 4 options 1-3,2-6,3-9,4-12 3-9,4-12 are rejected as then no weight can balance their sum. You first take 3-6 and solve you will see that it will be rejected as 1 of weights will be required twice. So only Cale is 1-3 then we gat 2 options. Take 1 and start solving, 1 of them will be rejected. The weights of circled are 10,7 and 1 from top to bottom.

- 3 years, 8 months ago

@Prince Loomba you gave technothlon too, how was the paper?

- 3 years, 8 months ago

You are seeing 2 of the questions. Others are harder

- 3 years, 8 months ago

I have given the test, so I know it :P Yeah, the questions were good, challenging enough.

- 3 years, 8 months ago

I posted 3rd too

- 3 years, 8 months ago

Yeah, i got the third one as 12.

- 3 years, 8 months ago

I got the first answer as not possible. I gambled on the second one on option B (2) -_-

- 3 years, 8 months ago

Update: Posted 3rd question

- 3 years, 8 months ago

Recent update:Question 4 and 5

- 3 years, 8 months ago

Q5 B18

- 3 years, 8 months ago

Solution required

- 3 years, 8 months ago