Simple Interest & Compound Interest 2 | CAT Preparation 2024 | Arithmetic | Quantitative Aptitude
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- čas přidán 10. 04. 2019
- CAT PREPARATION 2024 I QUANTITATIVE APTITUDE PREPARATION for CAT 2024
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this man don't teach how to solve a question, but he teaches how the question is actually made...
that's the unique ability of sir
pehli baar si ci pdhne m v maza aa rha . thank you for these vidoes sir ,
Best explanation. Thank you so much sir!
Thank you Sir for making me fall in love with Maths and keep my phobia at bay
Amazing Sir!!!! Thanks a lot
By watching ur video my all doubts are cleared
You are a magician, sir. I could always solve those questions. But never this fast.
Glock Glock
lmao
@@mancunianswagger3668
@@mancunianswagger3668 lmao
How to calculate CI in 3rd year, after 144?
ur way of explaination is amazing sir , thnaku
Excellent explanation ! Thank you
fall in love with the way you teach😍
Sir i am not able to understand intrest on intrest for 172.8 step
u r blessing sir
After taking common from denominator in first ques where is the common factor or by which it get cancelled?
Thank you sir .. it helped me alot .. ✌🏻
Thank you so much sir...🙏
You are superrr se uperrrr sir❤️❤️
I didn't understood the very initial q ?
thankyou sir, great session
This question can have multiple answers right ?
In first question ... first part years are 4 then why written 2
You are Fabulous 👏
Amazing 🔥sir
सर आपने दूसरे क्वेश्चन मैं all denominators को 2 से डिवाइड किया और रिड्यूस कर दिया परंतु 22 को छोड़ दिया जबकि वह भी काट रहा था आज आपने क्यों किया मुझे नहीं पता पर मुझे लगता है आप आंसर पता होते हैं फिर आप सलूशन को फटाफट कर देते हैं पर हमें नहीं समझ आ रहा है सर
In first ques , What's the point of doing 2A=3B=4C is there any use of it?
Thank you so much sir.❤❤
Legend...
You exchanged p1 and p3
How does it matter dude answer remains the same!!!!!!
I think he considered 2yrs in p1 because he would receive that amount first.
God bless you sir
In Q1, sir interchanged the no of years mistakenly for A1 and A3. In A1 you can see sir took 2 years whereas in the question it is 4 years. The question was that sum of interest and principal in all 3 cases turned out to be equal.
Exactly that was a mistake
Sir takes 3 part no. Of years as 4 but as per question it is 2 years so eventually the ans will be same
The answer would be same just different order of part.
How amt= p(p+prt/100)
Thank u very much sir
15:00 imp interest on interes tin ci
Why in 1st question we calculated with A=P+PRT/100 and in 2nd calculated with A=PRT/100?
In 2nd question amount is not calculated. It is the interest, calculated. As in question it is mentioned *interest he received on 3 parts were equal*
in first question we were talking about AMOUNT( A=P+PRT/100 ) but in second question we are talking about SIMPLE INTEREST(S.I=PRT/100) .
notes ???
In first ques why dont cut 22 in denominator .. when cut all denominators which is divided by 2 ? Plz help anyone
Because if he cuts all the denominators then the 22 in numerator with P1 will remain there only
and P1 = P2 = P3 will not come.
T has been interchanged for A1, A3
If compound interest of a certain sum at the end of 2 years and 3 years are Rs. 456 and Rs. 819 respectively. Find the rate of interest.....how can we calculate this sum....% change formula is not applicable for this
Can anyone pls explain 🥲
At 18:02, what is do (144-120)/120, it also gives 20 percent. Is it wrong ❌ ?
24/120=1/5=.2*100=20%
Bro wo si ki baat ho rahi h ci ki nhi
The ratio in 1st question should be 3:4:6, and when we calculate through this, then we will get P1, P2, and P3 amounts as 9150, 12200, and 18300 respectively.
Looks like you did the common mistake ....
The question does not mention that all the 3 parts get same simple interests ( which you have used to solve )
In the question , it was actually mentioned that the amounts received in all the 3 parts is same
which doesn't mean that the interest on those parts are same...
What is actually meant is after adding the interest on the respective parts, the amount you get is same.
So the method Sir used is correct ... just in opposite order ( as he mistakenly used the opposite years )
Answer is same as sir just opposite ..
You can check by adding the interest with your A1,A2 and A3 with respective years..
Hope this helps..
@@shubhamsharma-nb8yd Oh okay, I guess I have misunderstood the question, thanks for correcting me dude.
Your approach was correct. The only mistake you must have made is to equate it directly to get the ratio of 3:4:6 instead of taking A=P+I part's ratio.
⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️
12:45
thankyou sir
In p2 in denomination again 22 will reduce to 11 right? So it will be 11*12
I Have the same doubt
Why didnt he cancel that???
he already said we cant cancel more than 2 figures under this concept
Let's make the doubt clear, the year ratio for 1st question is P1:P2:P3 = 2:3:4, Amount A1=12650 for 5% for 4 yrs, A2=13200 for 5% for 3 yrs, A3=13800 for 5% for 2 yrs = 15180.
Thanks cutie
Yep..I came in comment section.. to see if somebody noticed this or not...😂😂😂😂
How does it become 2:3:4??
It is not. It is in the ratio 253:264:276@@sarahshaikh6550
Won't we multiply p1, p2 and p3 with 1.2, 1.1.5 and 1.1 to get the anount for each part in Q1?
No, It's given that amount recieved by each part is eql, we have to calculate principle for each of that amount p1,p2 and p3
@@samaymohale3050 but it says amount on every part.doesnt that mean interest ???i am really confused because of the question.
Sir while dividing by 2 why you have not divided 22 by 2??
same thing I'm wondering
mee too
can anyone explain how did sir take 30 as lcm in question 2 ????
He took the lcm of 6,10 and 15 which comes 30 and divide each term by 30 so that we get the ratio of P1:P2:P3= 5:3:2. Hope u get it now😊
@@maryamfarooquee1494 thank you 🤝
sir in first question why did we divide by 2 ?
He's not actually dividing it by 2. He's writing 50 just as ( 100 / 2) just for faster calculation.
@@vipulchauhan7634 in the same question why he did interest as PRT/100
guys vidos dekhne ke baad like bhi karo yrr .
How does he get 110p1 115p2 120p3 can some1 explain
1×100+10=110 by taking lcm
In first question I have doubts.
And also if we are calculating the interest for the amount you calculated we find different amounts of interest!!🤦♂️🤔
Amount calculated by me 9150, 12200, 18300.
Please someone make it clear 🤦♂️🤦♂️
Dude actually it's mentioned in the question that amount he received for 3 parts is same and they all have different tenures so question basically made like this the interest would be same
Dude in the first question i did the same mistake, it is actually in the first question the amount received in the first question is equal whereas in the second the interest he received is equal, so different formulas
18:36 I have a doubt.
100>>>120>>>>>144>>>>172.8
Let say ci for 2 yrs given=44
And ci for 3 yrs=72.8
If we now find rate of interest =(72.8-44)÷44%
= 65.45% coming instead of 20%
( Sir The concept u explained hold for 2 successive yrs) then why not the ans is matching. Pls explain
bhai you have assumed tht value for 2 year and 3 year so it wont come 20%
answer will be 65%
Actually the values you took are incorrect, the CI is initially 20 then 24 then 28.8 not 20, 44, 72.8 and now if you ll calculate, you will get correct ans
@@ritikaagrawal8347 okay I got it.
But let's say in a prob (we don't know the principal amount) and it is given CI for 2 years (not 2nd yr only) =44 and CI for 3 years=72.8 . Then how u calculate rate of interest?
@@navneetmaurya5297I understand where I go wrong. But
Let's say in a prob (we don't know the principal amount) and it is given CI for 2 years (not 2nd yr only) =44 and CI for 3 years=72.8 . Then how u calculate rate of interest?
@@inspiredsoul8834 look the concept we are using here only works for interest amounts for individual years, so first in order to use this method you will need to find out the respective interest amount accrued in the respective successive years, which is 72.8 - 44=28.8
but no way to determine the second year, so it will not work
formula of compound interest includes power of t and not t multiplied with r... please check
Arey samjho to kya bataya hai
@@Rodha samghao to dhang se
@@sonas5501 Bahut detail me Karaya hai.. Ek baar aap sukoon se dekho
❤️❤️❤️
❤
wont 22 also be cancelled by 2 for P2/22X24
No, in p1/23x24...24 is cancelled...in p3/22x23...22 is cancelled....in p2/22x24...if 22x24 is divided by 2..anyone of 22 & 24 will get cancell..so if u r cancelling 24,no need to cancel 22..
@@adarshshukla6998 I still so r understand. we are dividing all 3 ratios by 2 right, so shouldn't both 22 and 24 divided by 2
@@149studios7 you cannot divide 2 numbers in the denominator of a single number at the same time
@@shrishtisingh9137 yes that is what sir said
your answer for question 1 is wrong as in 4.38 you have divided 22,24{p1},24{p2},22{p3} by common factor 2 but you have left 22 from p2
he cancelled 24 from p2
In the first question why did he uses interest as PRT/100
In question 1 my answers are , p1 =9150, p2=12200, p3 = 18300, please recheck it
P1 = 12650 p2 = 13200 p3 = 13800
Because you calculated only for si but the question had asked for the amount i.e. (respective part + their si)
110p1=115p2=120p3 is divided by 5.. ! NOT 4
Thanks a lot....
Lent means???
to give/loan
udhar
Guys is it adequate content to refer for the cat exam,did sir covered whole topics??? I am asking becoz I saw some comments before where they were telling sir didn't covered the full topics and left some concepts which are important plz guys tell me is it enough or should I join an coaching institute 😢
Sir has covered almost every topic, if there is any topic left you can watch other teacher's video. There is lot of content on youtube it's upon you how you filter the content. I won't suggest you to join coaching if your basics are not clear especially in quants, they will just try to complete their syllabus before august or september. You might not be able to catch their pace.
saari imp variety k questions hue hai practice aap karlena
A1 is for 4 years
Yes I was thinking same too
First part he takes for 4years
But you taken 2year
Just an order you can take 4
you cant lent money for directly for 4th year right? so first u will lend money for 1st then 2nd then 3rd amd soo he just took that way
mza nhi aaya
Sir tere liye nachenge nhi maja dene ke liye
Thankyou sir