Can you solve the giant iron riddle? - Alex Gendler

Translator: Clarence Bitegeko Reviewer: Nelson Simfukwe

Familia ya majitu makubwa unayoifanyia kazi

The family of giants you work for

is throwing a fancy dinner party,

imeandaa karamu ya kuvutia,

and they all want to look their best.

na wote wataka kuonekana wakiwa katika uzuri wao

But there’s a problem –

Lakini kuna tatizo moja -

the elder giant’s favorite shirt is wrinkled!

shati pendwa la kubwa la majitu limejikunja

To fix it, you’ll need to power up…

Kurekebisha, unatakiwa kuwasha...

the Giant Iron.

Pasi Kubwa.

The iron needs two giant batteries to work.

Pasi inahitaji betri mbili kubwa kufanya kazi.

You just had 4 working ones

Ulikuwa na 4 tu zifanyazo kazi

and 4 dead ones in separate piles,

na 4 mbovu katika marundo tofauti.

but it looks like the baby giant mixed them all up.

Lakini inaonekana mtoto wa majitu amezichanganya zote.

You need to get the iron working and press the giant shirt, fast –

Unatakiwa kufanya pasi ifanye kazi na kunyoosha shati kubwa, haraka -

or you’ll end up being the main course tonight!

au utaishia kuwa mlo mkuu usiku huu!

How can you test the batteries

Unawezaje kupima betri

so that you’re guaranteed to get a working pair in 7 tries or less?

ili uwe na uhakika wa kupata jozi nzima katika majaribio 7 au pungufu?

Pause the video now if you want to figure it out for yourself

Simamisha video sasa kama unataka kupiga hesabu mwenyewe

Answer in 3

Jibu ndani ya: 3

Answer in 2

Jibu ndani ya: 2

Answer in 1

Jibu ndani ya: 1

You could, of course, take all eight batteries

Ungeweza kuchukua betri zote nane

and begin testing the 28 possible combinations.

na kuanza kujaribu miungano yote 28 iwezekanayo.

You might get lucky within the first few tries.

Unaweza bahatika ndani ya majaribio machache ya kwanza

But if you don’t, moving the giant batteries that many times

Lakini usipobahatika, kuhamisha betri kubwa mara nyingi hivyo

will take way too long.

kutachukua muda mrefu sana.

You can’t rely on luck –

Huwezi kutegemea bahati

you need to assume the worst possibility and plan accordingly.

unatakiwa kufikiria matokeo mabaya kabisa na kupanga ipasavyo.

However, you don’t actually need to test every possible combination.

Hata hivyo, huhitaji kujaribu kila muungano unaowezekana

Remember – there are four good batteries in total,

Kumbuka kuna betri 4 nzima kwa ujumla,

meaning that any pile of six you choose

ikimaanisha kuwa rundo lolote la 6 utakalochagua

will have at least two good batteries in it.

litakuwa na walau betri mbili nzima ndani yake.

That doesn’t help you right away,

Hiyo haikusaidii papo hapo,

since testing all six batteries could still take as many as 15 tries.

sababu kujaribu betri zote sita kunaweza kuchukua hata majaribu 15

But it does give you a clue to the solution –

Lakini inakupa dokezo kuelekea ufumbuzi -

dividing the batteries into smaller subsets narrows down the possible results.

kugawa betri katika sehemu ya seti ndogo ndogo inapunguza idadi ya matokeo

So instead of six batteries,

Kwa hiyo badala ya betri sita

let’s take any three.

tuchukue betri tatu zozote.

This group has a total of three possible combinations.

kundi hili lina jumla ya miungano mitatu inayowezekana

Since both batteries have to be working for the iron to power up,

Kwa kuwa betri zote zatakiwa kufanya kazi ili pasi iwake,

a single failure can’t tell you whether both batteries are dead, or just one.

Kushindwa mara moja hakuwezi kukwambia kama betri zote mbovu au moja tu.

But if all three combinations fail,

Lakini miungano yote mitatu ikishindwa,

then you’ll know this group has either one good battery, or none at all.

hapo utajua kuwa kundi hili lina aidha betri moja nzima au zote mbovu

Now you can set those three aside

Sasa unaweza kuziweka hizo tatu pembeni

and repeat the process for another three batteries.

na kurudia mchakato huo kwa betri nyingine tatu

You might get a match, but if every combination fails again,

Unaweza kupata zinazoendana, lakini miungano yote ikishindikana tena,

you’ll know this set can have no more than one good battery.

utajua kuwa seti hii haina zaidi ya betri moja nzima.

That would leave only two batteries untried.

Hiyo itaacha betri mbili tu ambazo hazijajaribiwa.

Since there are four good batteries in total

Kwa kuwa kuna betri nne nzima kwa ujumla

and you’ve only accounted for two so far,

na umetambua mbili tu hadi sasa

both of these remaining ones must be good.

mbili zilizobakia lazima zitakuwa nzima tu.

Dividing the batteries into sets of 3, 3, and 2

Kugawa betri katika seti za 3, 3, na 2

is guaranteed to get a working result in 7 tries or less,

kunatoa hakika kupata jibu sahihi katika majaribio 7 au pungufu

no matter what order you test the piles in.

bila kujali mpangilio unaojaribia marundo.

With no time to spare, the iron comes to life,

Bila kuwa na muda wa ziada, pasi inawaka,

and you manage to get the shirt flawlessly ironed.

na unaweza kufanya shati lipigwe pasi vizuri.

The pleased elder and his family show up to the party dressed to the nines

Mkubwa wa majitu aliyeridhika na familiaye wataingia karamuni wakivalia maridadi sana

… well, almost.

....naam, karibia.