49th International Mathematical Olympiad

June 7th, 2008 9:45 pm by funny_but_nice

Mathematics lama zirlai te inelna sang ber IMO 2008 chu July 10-22 hian Madrid, Spain ah neih ani leh dawn ta. IMO hi mizo te hian kan hre lar lo riau in ka hria a ka rawn post ani e. IIT-JEE pek tum nau te kan nei anih chuan heng question ho tehi in buatsaihna tha tak ani. a tum lemlo tan pawh a concept man nan engemaw chen hi chu zir ve ngei ngei chi ani entrance dang ah pawh a tangkai.

High School level (10+2) mah ni se an Question hi a har thei khawp a, a mathematics lo deuh ber ni a ka hriat hi hei ka rawn dah a pakla hisap khan han chhut ve chhin teh u.

Q– A magician has one hundred cards numbered 1 to 100. He puts them into three boxes, a red one, a white one and a blue one, so that each box contains at least one card. A member of the audience draws two cards from two different boxes and announces the sum of numbers on those cards. Given this information, the magician locates the box from which no card has been drawn.

How many ways are there to put the cards in the three boxes so that the trick works?

7 Responses to “49th International Mathematical Olympiad”

1
H.Vangchhia Says:
June 8th, 2008 at 1:29 am
sikul kal lai leh hna thawhna a chhut tur tam tam nen …hetah zel zawng ka chhut lo mai ang. Mirage-i kha ka kian e..

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2
luliana Says:
June 8th, 2008 at 2:38 am
Pass…hehe

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3
mirage_isme Says:
June 9th, 2008 at 9:45 am
Pu Vangchhia min kenna chu zahawm hle mah se, i’ve got better things to do than wasting my time on Mr.Sniper’s magic…

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4
Irreplaceable Says:
June 9th, 2008 at 9:49 am
First of all,i need to be a magician to solve this question.

Odd no’s leh even no’s te dah hran a ngaih ka ring deuh……ka ngaihtuah peih toh lo(Sunday school exam bak exam ka tum tawh chuang lo keichu)

Lastly,the magician must be good with numbers.

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5
benjamin Says:
June 9th, 2008 at 11:23 am
probability. permutation and combination. No thanks. I don’t want to think.

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6
mirage_isme Says:
June 9th, 2008 at 12:24 pm
Thiam lo bon top top

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7
Sniper Says:
June 9th, 2008 at 7:38 pm
@Irreplaceable: riddle lampang hi i tih mi hmel riau in ka hre deuh.
keipawh even leh odd hi ka rilru ah alo lang hmasa ber hemi ka ngaihtuah hian. mhse a sum odd anih in choice 2 with 50% probability a awm.
Irreplaceable i’m pretty good in numbers but im not a magician. hehe

@ben: permutation and combination chuan chawh theih chiang e, mahse a har reuh khawpmai.

how to tackle this problem:
box pathum zinga pahnih thlanchhuah atangin eng card pawh pawt ila box combination dang pahnih atanga kan pawh nen a belhkhawm a inanglo tur ani.

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