beginners thread- common doubts cleared

for concept clearing and to learn short trick approaches

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Can you please tell me that which branch of TIME or CL is best in Delhi?

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@summi_arora 16-20

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Sujata Patil @SujataPatil  ·  3h

@summi_arora bro binary logic nhi samajh aa rha.... m time ke package se dekhi.... aur koi acha material ya koi site h toh plz bta do...

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Shyam Arora @summi_arora  ·  3h

@SujataPatil Ek-do questions post karo DILR thread mein. Waha saath mein solve karne ka try kartey hain. Zaoor koi acchi approach mil jayegi.

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@mayur_arora @summi_arora bhai log DI ka time ka sectional test (games & tournament) to de hi diya hoga aap log ne... plz help kar do thora 🙏

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Shyam Arora @summi_arora  ·  2d

@SujataPatil You still stuck here? 🙈

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Sujata Patil @SujataPatil  ·  2d

@summi_arora arey its not dat... i hav asked bro this in morning... now he is free... tagged him for another approach...

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Se

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@SUCCEED1ST @SUCCEED1ST  ·  6d
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Vishu Pai @vishiac  ·  6d

@SUCCEED1ST c.p. = 600*10/9=2000/3... Expense =15% of 2000/3= 100... Total c.p. = 600+100= 700... S.p.= 1.25*700= 875

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6th and 8 th please , please explain if used some basic property as i am not familiar with it

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Mayur Arora @mayur_arora  ·  2w
@bali00bali Q8 : Since ABC is a right triangle, apply pytha to get AC=5 Area of triangle = 0.5*(Product of sides which are perpendicular) = 0.5*AB*BC Also, area of triangle  = 0.5*base*height = 0.5*BD*AC Hence we have 0.5*BD*AC =  ...
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Mayur Arora @mayur_arora  ·  2w

@bali00bali Q6 : All smaller triangles are equal, hence each has area = 36


So required answer = 36+36=72

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Any formula to know three numbers are pythagorian triplets or to know pythagorian triplets of a number without solving it completely?

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Mayur Arora @mayur_arora  ·  2w

@bali00bali well , most of them are in 3:4:5 ratio

but you need to solve for other type of triplets.


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 The metro service has a train going from Mumbai to Pune and Pune to Mumbai every hour, the first one at 6 am. The trip from one city takes 4.5 hr,and all the trains travel at same speed.How many trains will you pass while going from Mumbai to Pun...
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Determined!!!                                          
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prithvi  @prithvi1729  ·  2w

@rv95825 thanks...

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Rohit Verma @rv95825  ·  2w

Hope it helped

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approach for q.86 please

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approach please

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@tingaribalu @tingaribalu  ·  2w

just exapand the series....from 5th term onwards , sqrt(18) ,sqrt(3) will repeat for every n which is even number and odd number respectively. given 12345 is odd.

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@anirbansen3027 @anirbansen3027  ·  2w

thank you

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21 detailed soln pls

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Gurpreet Singh @jack45  ·  2w

@ma10yank ya detailed soln

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Mayank Upreti  @ma10yank  ·  2w

Rawm:cost =1:3 where 3part is 18 so 1 part is 6 also given that cost is made by rawm+wages so wages=12 now initalraw:changeraw=3:7 where 3=6 so 7=14 same find for wages and add them

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