Bro सबसे esay trick नीचे से 1 से 4 तक numbering करो उसके बाद 1 से 3 तक numbering कर के last के digit से गुना =12 ,then niche se उल्टे क्रम मे जोड़ों 10 then नीचे से ऊपर तीन भागों मे डिवाइड हुआ है 10 ×3 =30 then right to left se 6×4=24 total 54 then 12 ghata do 42 answer 👍
@@user-md_arbz__khan_maths_trick I used to teach students during 2015 to 2019 before I qualified rrb alp 2018 batch. Working as a sr alp in howrah division.
@@veenamalli2411 not really......i was a backbencher 😅 only in btech and mtech course. That's why i didn't get a good placement from my college campuses. Although I have done my btech in EE from IIEST and mtech from NIT durgapur.