chemsha bongo!...maths question

[Binti Maringo]

Probability question!....anybody?!>
There are 2500 people right!....

30% of those bought Ford
20% of those bought Toyota
10% bought both Toyota and Ford

If you pick 1 person from those 2500 people, what probability/chances that person will be the one who bought Ford and not Toyota?

help!......

 

[Tiba]

Niliisha sahau hesabu za probability!!!! Wanaokumbuka wamwage vitu hapa.

Tiba

 

[Binti Maringo]

Niliisha sahau hesabu za probability!!!! Wanaokumbuka wamwage vitu hapa.

Tiba

I hope kuna watu watajitokeza maana hata miye nimesahau kabisa probability ..lazima kutakuwa na vichwa humu ndani!>..anybody! come out come out wherever you are!.....

 

[Kituko]

ma mdogo unanikumbusha mbali sana, kuna bwana mmoja anaitwa SO MUCH, nadhani hapo ndio nyumbani

 

[Bluray]

2500 universal set

10% bought F and T thats 250

30% bought F thats 750, but these include those who bought F and T, so those who bought only F are 750 -250, thats 500

20% bought T, Thats 500, but these include those who bought F and T, so those who bought only T ARE 500 - 250, THATS 250

Probability of one person buying F and not T is 500: (2500-250)
That is 500:2250

0.22222222222222222222222222222222

 

[Binti Maringo]

10% bought F and T thats 250

30% bought F thats 750, but these include those who bought F and T, so those who bought only F are 750 -250, thats 500

20% bought T, Thats 500, but these include those who bought F and T, so those who bought only T ARE 500 - 250, THATS 250

Probability of one person buying F and not T is 500: (2500-250)
That is 500:2250

0.22222222222222222222222222222222

My probability says 0.3....and yours is 0.2222 na huwezi approximate 0.2....mmh haya mwingine aje na lake...

 

[Babu Swahili]

Kelly01,

Mchoro huo hapo juu kunyambulisha vizuri.

Kama alivyokokotoa Bluray. Wanaoweza kununu F peke yake ni 500. Sasa Ukiondoa hao 250 wanaoweza kununua F or T, the rest watakuwa denominator ya probability yako.

Kwa hiyo 500/2250 au 2/9 au 0.22222 ndio probability yako.

 

[TanzanianFemale]

Kelly01,

Blueray and Babuswahili wamepata. Studying for the GMAT?

 

[Binti Maringo]

Thank you BS and Bluray!.....

Kelly01,

Blueray and Babuswahili wamepata. Studying for the GMAT?

Yeah i see it should be less than 0.3 since there is 10%.....

 

[Lole Gwakisa]

Kelly01,

Mchoro huo hapo juu kunyambulisha vizuri.

Kama alivyokokotoa Bluray. Wanaoweza kununu F peke yake ni 500. Sasa Ukiondoa hao 250 wanaoweza kununua F or T, the rest watakuwa denominator ya probability yako.

Kwa hiyo 500/2250 au 2/9 au 0.22222 ndio probability yako.

Ama kweli duniya yasonga mbele, nilikuwa mkali wa hesabu, sasa hivi najua kuhesabu noti tu!

 

[Teamo]

kelly01 leta hesabu yenye akili bwana!
leta partial derivatives,leta li-hospital's rule,leta maclarean series,leta mambo makubwa bwana!unaleta vitu gani hivyo bwana!?

 

[Binti Maringo]

kelly01 leta hesabu yenye akili bwana!
leta partial derivatives,leta li-hospital's rule,leta maclarean series,leta mambo makubwa bwana!unaleta vitu gani hivyo bwana!?

haya G!...subiri nakuletea lingine na uweze kusolve usianze kusubiria kwanza watu waje na majibu yao!......ok...stay tuned...

 

[GM7]

Huyu jamaa kanikumbusha miaka miaka ile nilipokuwa msumbufu kwenye hesabu, ila siku nimesahau kidogo, hebu lete chemsha bongo nyingine tujaribu.

 

[Bluray]

Leta Poincare's Conjecture.

 

[Mwazange]

Ama kweli duniya yasonga mbele, nilikuwa mkali wa hesabu, sasa hivi najua kuhesabu noti tu!

Ameeen mkulu.... mwendokasi wa dunia umekuwa mkubwa sana

 

[Binti Maringo]

Ok here is another question!.....

If the price of gasoline increases by 25% and Ron intends to spend only 15% more on gasoline, by what % should he reduce the quantity of petrol that he buys?

A. 10%
B. 12.5%
C. 8%
D. 12%
E. 6.66%

 

[Babu Swahili]

Kelly01 sasa una cheat....

Let Original Gas Price = $2
New Price = 2 + (2 * 0.25) = $2.50

Let Origanal Quantity = 15 gallons
Original Total Cost = 15 * 2 = $30
New Cost = 15 * 2.5 = $37.50

Ron's Intention
To Spend = 30 + (30 * 0.15) = $34.50

So, with the new price ($2.5), he would only get 34.5/2.5 = 13.8 gallons. That is 1.2 gallons less, which means 1.2/15 = 8% reduction of gallons

Answer = C

 

[Madam Koku]

Aisee mmenikumbusha hesabu! Long time. Mwl Isack Juma popote ulipo. Heshima yako. Your passion to Math as a teacher was a challenge and motivation to many, including me.

 

[Papizo]

Unaweza kufanya hivi swali bila kuchora na kujua jinsi ya kupanga??Pia hili swali la high school!!

 

[Madam Koku]

I might know the answer but Sipendi kuingilia mambo ya watu na magari yao
Well i use to like these probability questions. Ila si sasa!