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Ratio and Proportion 2

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Ravi Prakash: "Speed maths class will be discussing about percent is approximation"
"It 's very important thing if you take the application of its in quant or lidi" "Just learn
the method and we 'll develop a good IQ level for it," he says. What is one percent of
this number it is 6. 4 it okay. Calculating five percent and calculating one person
should be very easy know how to calculate fifteen percent is the amount of fifteen
percent so 15 percent is how much its it should be. For calculating 15 percent just
break the number s ten percent plus five percent. 16 percent of 1 2 1 2 3 4 is 16
percent plus 5 percent plus 1 percent. 120 3 point 4 is 120 3. 4 it's half it 's half the
number 120 half 63. 4 half is one point seven so 60 plus 1. 7 61. 7 or what you can do
then little what is four five percent can be calculated to calculate it by five percent.
always round off to first place of decimal okay so before point five it is rounded to
previous in dessert after point five next to into the right at point five like suppose 12
point five six is there make it twelve point five all innovation this kind of
approximations okay so you should do you. 0. 66 0. 6 % is about two by three. 16 by
6 6 sixteen point six six percent is 1 by severity right what you can think here is
almost almost almost 1 by 6 of 1 2 3 4 okay what is the what is 1 by 6 of 1 by 2 1 2
1 2 by 2 by 6 is approximately 6 that is about 2 0 6 right now now whatever you
subtracted. If you give me this kind of number I could probably do in ten seconds
right a lot of practice same question maybe another five second I can take an option
right so you have to train your mind like that right so this thing will help you this
thing very stepboys is step when i 'm spending rate is turn these things we need to run.
approximately we reach there okay.
What is one point of the 64 it is one force 25 % is 1 by 4 white. Double half 864 half
is how much for 32 what is for 32 half to 1/6 or can break the number 800. 1 % is a
two point six four what is 2 % double it so eight eight points you can approximate it
to eight point six always to one piece of decimal. 100 percent of a number is a whole
number itself. 100 percent plus twenty percent minus two percent in your mind. Add
115 plus 46 is 61 so it is 161. Add the numbers 40 plus 16 hundred six plus nine one
one one six plus 9 fifteen. Add all the hundreds 20300 something here plus 400 so
2300 plus 400 is 2700. Sokka: "I feel it is very important in form from my perspective
right even if there 's calculated in cata now putting exams like it 's a CSAT or any of
the exams right. There 's no calculator till absolutely no calculator right but these
questions you have to do in your mind and for in cat also read for every small thing.
It will make you buy it will increase your IQ level okay that is more important I told
her it it 's not only what we were doing we 're trying to raise the intelligence level
right so this thing 's if you can do it quickly right obviously the more intelligent
nothing is right now. If you can do it very fast it will be good for you only right and
how to do fast and tell you the methods every time every time right. I'm teaching you
aptitude how to think is very important right somebody will tell okay I do n't know
how to calibrate 40 percent fast.

Ravi [UNK] In this class, we will see how to auto scepter how to calculate if like
numbers of the form. Suppose take example 233. Upon 864 okay how to reduce value
in within 10 seconds. How to write value within 10. seconds right and by thinking not
by any formula right just by thinking pure logical approach. 233 is what position up at
64. So we observed that it is 200 something it is ated at something it 's around 1./4.
233 is how much it is a two point six four forty-17 / seventeen. 233. Upon 864. What
is the value of this number. It is point two seven. one by one is 100 percent. Okay one
by two is 50 percent. 1 by 3 is 33. 3 percent. Okay 1 by 4 is 25 percent Ok 1 by 6's
sixteen point six six six percent right. Around what is one by seven fourteen point two

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