Percent Mixture Problem

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Gosh now we know algebra is important 😂😂😂😂 wonderful explanation… it’s great to know

nkathreya
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Excellent! I think I will always get the correct answer of this kind of question from now on! Thank you!

raisingelephant
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I have never seen someone simply problematic sums like this....✔️he made it so easy

VigyatBorayara
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We use the same concept in chemistry when we find the average atomic mass among the isotopes eg Cl

randomguyplayingminecraft
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🤔🤭🤫I got lost or distracted and have now confused myself silly.. when I solved in my brain, I got 14🫣 then I rewatch & .. well, now I'm back to confused silly 🤯 This can't be happening🙄🤒✌🏾🙏🏽💜

jodijotuk
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Does anyone else’s brain work like this? 40% is 15 more than 25% and 10 less than 50%. 15+10=25. 15/25 = 3/5. 10/25 = 2/5. So, 40% has to be 3/5 50% and 2/5 25%. 3/5 is 1.5 times as much as 2/5, so 50% is 16 liters times 1.5. AKA 24 liters!

Krit
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ℹ Pharmaceutical calculations by Alligation method:

a/100.x + b/100.y = c/100(x+y) |÷100
ax+by=c(x+y)
ax+by=cx +cy
ax-cx=cy-by
x(a-c)=y(c-b)
x/y=(c-b)/(a-c)
x, y are volume from primer solution.
a is primer% concentration from x solution
b is primer% concentration from y solution
c is resulted% concentration from secondary solution with volume of (x+y)

rivas
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You know this is crazy like the fact that I just completed "Is matter around us pure" and this video got posted.

sumansaxena
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In chemistry there is other way to calculate this, it is easier when you do not have a calculator on you or you do not know calculus

ИскандерЖалилов
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Could you explain the utilisation of alligations method? Need some clarity there. You simplify very well.

shabbirrampurawala
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Take some CAT exam questions too, they are toughest

RonnyS.
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I think the Stock Problems can be done in a similar manner, correct ?

josephshaff
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The big problem is how to form the equation.

davejose
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This test is not to test the knowledge but the smartness.

Exam has gone in the wrong direction.

ATC
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By alligation..
50% 25%
40%

15 : 10
=3 : 2
2==16
3==24 ✔

akashgoswami
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The train passed the 450 meter long bridge in 45 seconds, and near the pillar(column) in 15 seconds. How many meters is the train?

elentadevosyan
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Is there any other way to do it, without using equations?

luisclementeortegasegovia
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Why not just use the percentages (integer) as weights, and avoid the horribly ugly .45 sans leading zero…. 0.45 is what is required.

DrDeuteron
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First I did the problem in my head and came with 30 L but it didn't make sense then I set up the eqution just like his and came with 24 L and then I checked his video answer and Voila i was right.. I am 70 yr old btway

sajidrafique