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Approach to 'By' and 'To' Percentage Questions (in Hindi)
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In this lesson, you will learn the concept of By and To, observation based on decrease in a number/increase in the number + few questions with tricky approach.

Devendra vmentor
Author of 3 books on Arithmetic, Advanced Maths & English Grammar. Cleared CSE (pre) / SSC-CGL / SBI PO / IBPS PO.

U
Great explain boring chapter ko bhi interesting bana deya thanku mam😇😇😇
Juhi Mishra
6 months ago
Thank you Avni
awesome and best techniques sir... tnq so much
sir aap question. hindi aur english dono me likhe hindi medium walo ko dikkat hoti hai n
nice session
thank you sir. tricks are very useful
best mumbaiya style
1. Tricky Percentage For SBI PO/CLERK, IBPS PO/CLERK RRB, LIC AAO...etc -Presented by Devendra (Vmentor)

2. About Me . B. Tech + M. Tech e Civil Service Aspirant Civil Service Aspirant 1 year teaching experience ( Quant 1 year teaching experience ( Quant + Reasoning) Reasoning) e Cleared SCC CGL, SBI PO, IBPS PO, AFCAT Love YouTube, Music, Sports, Teaching Follow me on Unacademy.-https://unacademy.com/user Devendra. Meena Rate and Review

3. If a number 18. 'mureasedby 257- thin bservof,ons asa t % "represent the old number 125 % pregent.the new number neus number . 125%

4. f a number is decreased bu 25% then observahas 100y, represent H. old number 7sJe represent the nao number numbum 25% 45%

5. xconcapt The income is advud by 40% means the neo income ls 6,0 .of the onginal. new income Tha income is eduad by40 - The Inco me is reduced to 40%- means

6. height some Hmes on hight s t1o m. Pindl the percentago 90 Cm I10 m. (10-go 2.0 2.00-22- % 2. 22-22 . go 0 110 cm. 22-22y.

7. Salon of Ravi 9000 per month and sal Kaman Ks to,ooo per mont* 10 9 100 9000

8. what percent is the sala saler t Ravi that af kam lo lo In an election tuo condidaku condidale oho got 0 A0 Pind th tod no.of votes vofe 1 007. No inval ote 57 y. 43. loo loo 920