An arithmetic progression consists of 37 terms. The sum of the first three terms of it is 12 and....

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7.An arithmetic progression consists of 37 terms. The sum of the first three terms of it is 12 and the sum of its last 3 terms is 318.Then find the first and last terms of the progression

chapter-1(Arithmetic Progressions) Important Problems for class 10th Mathematics NCERT/CBSE syllabus
Application Questions in Arithmetic Progressions
Number shown in Thumbnails will show the solution of Particular problem in that video:
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1.If 7 times the 7th term of an A.P is equal to 11 times its 11th term, then find its 18th term.
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2.If m times the mth term of an A.P is equal to n times nth term ,Show that the (m+n)th term is zero.
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3.If the pth term of an A.P is q and the qth term is p .Prove that its nth term is (p+q-n).
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4.The sum of the first three terms of an A.P is 33.If the product of the first term and third term exceeds the second term by 29,then find the A.p.
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5.In an A.P, the sum of the 1st,3rd & 5th terms is 39,& the sum of the 2nd,4th & 6th terms is 51 then find the 10th term of the A.P.
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6.The third term of an arithmetic progression is 8 and its ninth term exceeds three times the third term by 2.Find the sum of the first 19 terms.
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7.An arithmetic progression consists of 37 terms. The sum of the first three terms of it is 12 and the sum of its last 3 terms is 318.Then find the first and last terms of the progression.
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Thank you alot mam for solving this problem. I was worried that how to solve this bcz tomorrow is my exam 🙏💞

rubykumarikhadka
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Thanks you sooo much mam this are useful problems

balunayak
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Mam ur maths guide . Tq so much mam 👌

shriharideshpande
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Thanks alott ma'am i was tensed about how to solve this sum and even i hadn't got the similarities of this sum.. thank you so much

prabhashirodkar
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Tq mam your explanation is really very good 😍

ramnagar
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Mam please solve a maths model question paper. Please mam

afreenkotbal
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Mam why u take 3(a+35d)=318. 35....?

Manju-bly
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Mam I didn't get how u got 106: it is 16 right

anwarizainab
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Mam can we do this sum by taking sn
Plz reply mam

akashgh
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Mam make vedio on applied sums on trigonometric and surface area and volume which may come to board exams pls pls maa

harshithaaa
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Mam but u didn't took sn formula for question

vishwas