Booster Batch | Quants: Lecture 4: Time & Work | CAT-MBA Free Preparation
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Пікірлер: 47
I literally underestimated study buzz but they have really easy, comprehendible and good content regarding cat!
Very efficient and hassle free method of solving these kind of sums...
Very Nice Method. Simple and efficient.
Wonderfully explained...questions of diverse varieties were solved which actually cat asks...❤
Extremely helpful
Thankyou so much..
wonderful explanations sir
much better than your xat crash course unfortunately.
Thankyou sir
55:15 first method se bta do
Thank you so much air IIM mein pakka ja rha hu sir
53:15 how to solve it in M D H method
Sir please add more lectures
Hi, the contractor based question , 2nd one, anyone got answer using formula method?
@DaDa-yd1pz
9 ай бұрын
sir has explained in one of the comments. you may check
More lectures please 🙏🙏🙏🙏🙏🙏
In the last question how to know that A and C means that they are taken together and not separately?
thanks a lot, it is really helpful
Sir same questions ka pdf dediya kro for self practise
Sir add more videos
Sir plz more videos percentage..
sir can you please explain the 3rd question with 110 pages again?
@swayamkacha4626
9 ай бұрын
A ka page per hour = 16/3. B ka page pe hour = 8. Now add both the rate we will get 40/3. Now we have to write 110 page and we are asked to find out the time so simply divide work by the rate, I.e. 110* 3/40 so we will get 33/4. That is 8 and 1/4. Now to find minutes multiply 1/4 with 60 and we will get 15 minutes so the answer is 8 hr:15 min. Hope it’s clear! Still if you have any doubt you can ask.
@hardikpandey7
9 ай бұрын
@@swayamkacha4626 thank you😄
@gunjanchauhan2882
9 ай бұрын
thanks dude@@swayamkacha4626
Sir contractor vaale questions ki approach dono ki exchange krke nhi kr pa rhe h
@agenthobbs5978
Жыл бұрын
Hi, You can exchange them, it was a hassle though, check my following solution - For the first contractor question (Please refer to the timestamp - 48:21)- SOLVED BY RATIO METHOD (Bahut confusing hoga- not recommended) It is given as 50 workers were able to do 40% of the work in 25 days. So just to even it out lets keep in mind that if they continued with 50 workers, the time taken would be 62.5 days (12.5 days more than the contract !!) Now lets get into the ratio method - workers - 50 : 50+X Time - 50+x : 50 So basically 50 units was 25 days (As 50+X workers worked for 25 days to complete the work in time) 1 unit is, you guessed it right, 1/2. so when we get into the time ratio again, you see the first value (50+x) it is nothing but 25days plus x units. Now, if we recall as mentioned earlier 50 workers are taking 12.5 days extra. so that extra time is being covered by the x workers the contractor has hired. Now now, what exactly is x units !? it is nothing but 12.5 days in case of time which means x = 12.5days. 1 unit is 1/2 , thus x units= 12.5*2 = 25. There we get it, 25. Second contractor question (52:30)-( This one was pretty straightforward) MDH/W method Let the total work to be done be 2w (split across each 20 days as W) Let x be the amount of work that 150 workers left out in the first 20 days. (This work was covered by the 50 newly added workers in the next 20days) (150*20) / (w - x) = (200*20) /(w+x) solving will give you w/x = 7/1 The ratio 7:1 has come to us now, so instead of 7units of work to be done in first 20 days by 150 workers, only 6units of work was done (w-x = 6) As total work is 2w (tobecompleted in 40days as mentioned in the contract) = 14 units (7 units*2) Now we know that 150 workers only did 6units of work in 20days. so in 40days they will only be able to complete 12units of work . Remaining 2 units of work needs to be done by them. As we know they did 6units in 20 days, they'll do 1unit in 20/6days. Thus they will be able to do 2 units in (20/6)*2 days, which is 20/3. Hope this helps. All the best. :)
last ques me rates equal kaise hue?
Sir time speed distance video needed
Where should we ask the doubts?
22:27
Day 3/50🤝
Day 3
In the last question I believe it that b works for a total of 4 days (but the sir solved it by taking 2 days ) can anybody explain
@ps_bongbong
9 ай бұрын
It is mentioned in the question that B leaves after working for the first 2 days
@shubhamjindal1332
9 ай бұрын
B works for 2 days then A join then after 2 days B leaves@@ps_bongbong
at 1:24:14 i belive it should be *x^2 - 23x + 60* not * - 60*
Sir , 3rd question, jo pages wala h wo thoda clear nhii hua ,
@Pallu758
10 ай бұрын
Meko v clear nhi huya
@Aashitaaaaa
10 ай бұрын
mine too@@joymendonsa28
@swayamkacha4626
9 ай бұрын
A ka page per hour = 16/3. B ka page pe hour = 8. Now add both the rate we will get 40/3. Now we have to write 110 page and we are asked to find out the time so simply divide work by the rate, I.e. 110* 3/40 so we will get 33/4. That is 8 and 1/4. Now to find minutes multiply 1/4 with 60 and we will get 15 minutes so the answer is 8 hr:15 min. Hope it’s clear! Still if you have any doubt you can ask.
@sarathsk8114
9 ай бұрын
@@swayamkacha4626 that was wayyy better. thanks
@swayamkacha4626
9 ай бұрын
@@sarathsk8114 thank you bhai ❤️
54:54 did any one try that