Chapter 5 Arithmetic Progression Ex 5.3 Q3(vi to x) class 10 Maths

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Question 3.
In an AP:
(vi) given a = 2, d = 8, Sn = 90, find n and an.
(vii) given a = 8, an = 62, Sn = 210, find n and d.
(viii) given an = 4, d = 2, Sn = -14, find n and a.
(ix) given a = 3, n = 8, S = 192, find d.
(x) given l = 28, S = 144, and there are total 9 terms. Find a.
Solution:

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[MathsTeacher]

*NCERT Exemplar* Class 10 Maths Videos

[vishalsupekar]

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[Study_With_Savvy]

Maam hm log 7th option mein 210*2 toh milta 420 and in 420 Ko 70 se divide krte toh
420/70, . 0 se. 0 cancel aur 7 *6 equall to 42 then we get 6 answer which is simple then that u have done.

[srinivaskodunuri]

Thanks teacher you best teacher in the region mam very very thanks

[atvido]

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[vanuraman]

you are great teacher god bless you you are serving children by heart

[sukhwantsingh]

Mam jb humne quadratic eq me factors wale sums sol kiye the usme hmne negative digit ko bhi mltipy kiya tha but this ch me negative digit ko kyu nhi multiple kiya??
Plz give me a ans if u want to clear my doubt I hope that u understand what I say🙏🙏

[someamazingcrafts]

Viii part bohoth difficult he 😨

For me 😑

[gitabuha]

Thanks a lot mam, your explanation is so nice 😊👍

[swapnadas]

Thank uu.. Mam May God bless u🥰🥰🥰.... Thank you🌹 for making maths easy.... Well wishes from Kerala 👼

[shikharchaudhary]

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[naseeransari]

Mam when we applied sn=N/2(a+l) formula . And we also applied sn =N/2(2a+(n-1)d) .

[mr_asif_]

Thanku soo much..
I solved all questions right now..

[arunah]

Mam here in Tenth line in second formula side u removes 2how mam

[toxicop]

Ma'am In part 7... .aapne bola ki n ki value hum nikalenge or aapne Sn=n/2(a+l) Wala formula lagaya h ma'am, n ki value to 62-1 krenge to bhi nikal jayegi kyuki aapne pehle question karaye h to usme aap añ ki jo value hoti h uss value ko n ki jagah put kr dete they it's like ( n-1) yaha aap an ki value n mien rakh dete they

[jhanviagrawal]

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Because of your video i understand all the questions easily And i didn't have any doubts Thank you....

[RahulYadav-tvrv]

Thanks mam 😊 for explanation I wish you are my maths teacher 😊 thanks

[rajusinge]

You are a type of teacher that i like a most😘😘

[aasystems]

Ma'am please Reply in question no. 8 can't we use this Sn=n/2(a+(n-1)d) inspite of using another formulaa ma'am pleasee rply . 🙏🙏🙏🙏

[atulshrivas]

Mam please don't mine, i have a suggestion for you that - can you please limit the usage of pages, rather solving only one ques. in page you can solve two